ログイン出来なくなりました

返信ありがとうございます。

デバッグモードを有効にしましたところ、HPのトップ画面に以下の文言が現れました。

Deprecated: ltrim(): Passing null to parameter #1 ($string) of type string is deprecated in /var/www/html/wp-includes/wp-db.php on line 3030

丸投げするようで申し訳ありませんが、これをどう解釈すべきなのでしょうか？
ご教示ください。お願いいたします。

• この返信は3年、 1ヶ月前にjazzwalkerが編集しました。

初心者です。お世話になります。

＞ログイン時に「重大なエラーが発生しました」と表示されたとの事なので、同じ操作（おそらくログイン試行）を行った時に、代わりに何かエラーメッセージが表示されていないかご確認下さい。

ログイン画面（ユーザー名、パスワード入力画面）にすると、今度は以下のようなメッセージが現れました。

エラー: 予期しない出力により Cookie がブロックされました。ヘルプが必要な場合はこちらのドキュメンテーションを参照するか、サポートフォーラムをご利用ください。

この「予期しない出力」とは何でしょうか？

＞サーバのエラーログをご確認下さい。

ラズパイ３B+でサーバを組んでおり（雑誌記事に習った）、済みませんが詳しいことはわかりません。
ただ、WordPress自体のアップデート、プラグインのアップデートは行われているようなのです。これはその都度メールで通知が来るので、問題なしと理解しています。いつの間にか、ログインできなくなっていたというのが実情です。

• この返信は3年前にjazzwalkerが編集しました。
• この返信は3年前にjazzwalkerが編集しました。

返信ありがとうございます。

以下、エラーログの内容ですが、さっぱり理解できません。コメントを頂ければ幸いです。

pi@raspberrypi3B:~ $ tail -f /var/log/apache2/error.log
[Sat Feb 26 08:28:58.554351 2022] [proxy_fcgi:error] [pid 18843] [client 52.139.206.136:18048] AH01071: Got error 'PHP message: PHP Deprecated:  Return type of WP_Block_List::offsetExists($index) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/class-wp-block-list.php on line 75PHP message: PHP Deprecated:  Return type of WP_Block_List::offsetGet($index) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/class-wp-block-list.php on line 89PHP message: PHP Deprecated:  Return type of WP_Block_List::offsetSet($index, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/class-wp-block-list.php on line 110PHP message: PHP Deprecated:  Return type of WP_Block_List::offsetUnset($index) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/class-wp-block-list.php on line 127PHP message: PHP Deprecated:  Return type of WP_Block_List::count() should either be compatible with Countable::count(): int, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/class-wp-block-list.php on line 199PHP message: PHP Deprecated:  Return type of WPCF7_FormTag::offsetExists($offset) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-content/plugins/contact-form-7/includes/form-tag.php on line 396PHP message: PHP Deprecated:  Return type of WPCF7_FormTag::offsetGet($offset) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-content/plugins/contact-form-7/includes/form-tag.php on line 388PHP message: PHP Deprecated:  Return type of WPCF7_FormTag::offsetSet($offset, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-content/plugins/contact-form-7/includes/form-tag.php on line 382PHP message: PHP Deprecated:  Return type of WPCF7_FormTag::offsetUnset($offset) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-content/plugins/contact-form-7/includes/form-tag.php on line 400PHP message: PHP Deprecated:  Return type of WPCF7_Validation::offsetExists($offset) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-content/plugins/contact-form-7/includes/validation.php on line 78PHP message: PHP Deprecated:  Return type of WPCF7_Validation::offsetGet($offset) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-content/plugins/contact-form-7/includes/validation.php on line 72PHP message: PHP Deprecated:  Return type of WPCF7_Validation::offsetSet($offset, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-content/plugins/contact-form-7/includes/validation.php on line 59'
[Sat Feb 26 08:28:58.713480 2022] [proxy_fcgi:error] [pid 18843] [client 52.139.206.136:18048] AH01071: Got error 'PHP message: PHP Deprecated:  Return type of WPCF7_Validation::offsetUnset($offset) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-content/plugins/contact-form-7/includes/validation.php on line 82PHP message: PHP Deprecated:  Implicit conversion from float 4294967295 to int loses precision in /var/www/html/wp-includes/pomo/mo.php on line 203PHP message: PHP Deprecated:  Implicit conversion from float 4294967295 to int loses precision in /var/www/html/wp-includes/pomo/mo.php on line 203PHP message: PHP Deprecated:  Implicit conversion from float 4294967295 to int loses precision in /var/www/html/wp-includes/pomo/mo.php on line 203PHP message: PHP Deprecated:  Implicit conversion from float 4294967295 to int loses precision in /var/www/html/wp-includes/pomo/mo.php on line 203PHP message: PHP Deprecated:  Implicit conversion from float 4294967295 to int loses precision in /var/www/html/wp-includes/pomo/mo.php on line 203PHP message: PHP Deprecated:  DateTime::__construct(): Passing null to parameter #1 ($datetime) of type string is deprecated in /var/www/html/wp-includes/script-loader.php on line 333PHP message: PHP Deprecated:  ltrim(): Passing null to parameter #1 ($string) of type string is deprecated in /var/www/html/wp-includes/wp-db.php on line 3030PHP message: PHP Deprecated:  Implicit conversion from float 4294967295 to int loses precision in /var/www/html/wp-includes/pomo/mo.php on line 203PHP message: PHP Deprecated:  Implicit conversion from float 4294967295 to int loses precision in /var/www/html/wp-includes/pomo/mo.php on line 203PHP message: PHP Deprecated:  Implicit conversion from float 4294967295 to int loses precision in /var/www/html/wp-includes/pomo/mo.php on line 203PHP message: PHP Deprecated:  Implicit conversion from float 4294967295 to int loses precision in /var/www/html/wp-includes/pomo/mo.php on line 203PHP message: PHP Deprecated:  Return type of Requests_Cookie_Jar::offsetExists($key) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/Requests/Cookie/Jar.php on line 63PHP message: PHP Deprecated:  Return type of Requests_Cookie_Jar::offsetGet($key) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/Requests/Cookie/Jar.php on line 73PHP message: PHP Deprecated:  Return type of Requests_Cookie_Jar::offsetSet($key, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/Requests/Cookie/Jar.php on line 89PHP message: PHP Deprecated:  Return type of Requests_Cookie_Jar::offsetUnset($key) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/Requests/Cookie/Jar.php on line 102PHP message: PHP Deprecated:  Return type of Requests_Cookie_Jar::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/Requests/Cookie/Jar.php on line 111PHP message: PHP Deprecated:  Return type of Requests_Utility_CaseInsensitiveDictionary::offsetExists($key) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/Requests/Utility/CaseInsensitiveDictionary.php on line 40'
[Sat Feb 26 08:28:58.760653 2022] [proxy_fcgi:error] [pid 18843] [client 52.139.206.136:18048] AH01071: Got error 'PHP message: PHP Deprecated:  Return type of Requests_Utility_CaseInsensitiveDictionary::offsetGet($key) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/Requests/Utility/CaseInsensitiveDictionary.php on line 51PHP message: PHP Deprecated:  Return type of Requests_Utility_CaseInsensitiveDictionary::offsetSet($key, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/Requests/Utility/CaseInsensitiveDictionary.php on line 68PHP message: PHP Deprecated:  Return type of Requests_Utility_CaseInsensitiveDictionary::offsetUnset($key) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/Requests/Utility/CaseInsensitiveDictionary.php on line 82PHP message: PHP Deprecated:  Return type of Requests_Utility_CaseInsensitiveDictionary::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/Requests/Utility/CaseInsensitiveDictionary.php on line 91PHP message: PHP Deprecated:  strlen(): Passing null to parameter #1 ($string) of type string is deprecated in /var/www/html/wp-includes/Requests/Transport/fsockopen.php on line 170PHP message: PHP Warning:  Constant WP_DEBUG already defined in /var/www/html/wp-config.php on line 101PHP message: PHP Warning:  Constant WP_DEBUG_LOG already defined in /var/www/html/wp-config.php on line 104PHP message: PHP Deprecated:  trim(): Passing null to parameter #1 ($string) of type string is deprecated in /var/www/html/wp-includes/class-wp.php on line 173'
[Sat Feb 26 08:28:58.784498 2022] [proxy_fcgi:error] [pid 18843] [client 52.139.206.136:18048] AH01071: Got error 'PHP message: PHP Deprecated:  ltrim(): Passing null to parameter #1 ($string) of type string is deprecated in /var/www/html/wp-includes/wp-db.php on line 3030'
[Sat Feb 26 08:33:55.580197 2022] [proxy_fcgi:error] [pid 18959] [client 91.211.91.184:48096] AH01071: Got error 'PHP message: PHP Deprecated:  Return type of WP_Theme::offsetExists($offset) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/class-wp-theme.php on line 554PHP message: PHP Deprecated:  Return type of WP_Theme::offsetGet($offset) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/class-wp-theme.php on line 595PHP message: PHP Deprecated:  Return type of WP_Theme::offsetSet($offset, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/class-wp-theme.php on line 535PHP message: PHP Deprecated:  Return type of WP_Theme::offsetUnset($offset) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/class-wp-theme.php on line 544PHP message: PHP Deprecated:  Return type of WP_REST_Request::offsetExists($offset) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/rest-api/class-wp-rest-request.php on line 960PHP message: PHP Deprecated:  Return type of WP_REST_Request::offsetGet($offset) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/rest-api/class-wp-rest-request.php on line 980PHP message: PHP Deprecated:  Return type of WP_REST_Request::offsetSet($offset, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/rest-api/class-wp-rest-request.php on line 992PHP message: PHP Deprecated:  Return type of WP_REST_Request::offsetUnset($offset) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/rest-api/class-wp-rest-request.php on line 1003PHP message: PHP Deprecated:  Return type of WP_Block_List::current() should either be compatible with Iterator::current(): mixed, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/class-wp-block-list.php on line 151PHP message: PHP Deprecated:  Return type of WP_Block_List::next() should either be compatible with Iterator::next(): void, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/class-wp-block-list.php on line 175PHP message: PHP Deprecated:  Return type of WP_Block_List::key() should either be compatible with Iterator::key(): mixed, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/class-wp-block-list.php on line 164PHP message: PHP Deprecated:  Return type of WP_Block_List::valid() should either be compatible with Iterator::valid(): bool, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/class-wp-block-list.php on line 186PHP message: PHP Deprecated:  Return type of WP_Block_List::rewind() should either be compatible with Iterator::rewind(): void, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/class-wp-block-list.php on line 138'
[Sat Feb 26 08:33:55.598971 2022] [proxy_fcgi:error] [pid 18959] [client 91.211.91.184:48096] AH01071: Got error 'PHP message: PHP Deprecated:  Return type of WP_Block_List::offsetExists($index) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/class-wp-block-list.php on line 75PHP message: PHP Deprecated:  Return type of WP_Block_List::offsetGet($index) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/class-wp-block-list.php on line 89PHP message: PHP Deprecated:  Return type of WP_Block_List::offsetSet($index, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/class-wp-block-list.php on line 110PHP message: PHP Deprecated:  Return type of WP_Block_List::offsetUnset($index) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/class-wp-block-list.php on line 127PHP message: PHP Deprecated:  Return type of WP_Block_List::count() should either be compatible with Countable::count(): int, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/class-wp-block-list.php on line 199PHP message: PHP Deprecated:  Return type of WPCF7_FormTag::offsetExists($offset) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-content/plugins/contact-form-7/includes/form-tag.php on line 396PHP message: PHP Deprecated:  Return type of WPCF7_FormTag::offsetGet($offset) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-content/plugins/contact-form-7/includes/form-tag.php on line 388PHP message: PHP Deprecated:  Return type of WPCF7_FormTag::offsetSet($offset, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-content/plugins/contact-form-7/includes/form-tag.php on line 382PHP message: PHP Deprecated:  Return type of WPCF7_FormTag::offsetUnset($offset) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-content/plugins/contact-form-7/includes/form-tag.php on line 400PHP message: PHP Deprecated:  Return type of WPCF7_Validation::offsetExists($offset) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-content/plugins/contact-form-7/includes/validation.php on line 78PHP message: PHP Deprecated:  Return type of WPCF7_Validation::offsetGet($offset) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-content/plugins/contact-form-7/includes/validation.php on line 72PHP message: PHP Deprecated:  Return type of WPCF7_Validation::offsetSet($offset, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-content/plugins/contact-form-7/includes/validation.php on line 59'
[Sat Feb 26 08:33:55.794007 2022] [proxy_fcgi:error] [pid 18959] [client 91.211.91.184:48096] AH01071: Got error 'PHP message: PHP Deprecated:  Return type of WPCF7_Validation::offsetUnset($offset) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-content/plugins/contact-form-7/includes/validation.php on line 82PHP message: PHP Deprecated:  Implicit conversion from float 4294967295 to int loses precision in /var/www/html/wp-includes/pomo/mo.php on line 203PHP message: PHP Deprecated:  Implicit conversion from float 4294967295 to int loses precision in /var/www/html/wp-includes/pomo/mo.php on line 203PHP message: PHP Deprecated:  Implicit conversion from float 4294967295 to int loses precision in /var/www/html/wp-includes/pomo/mo.php on line 203PHP message: PHP Deprecated:  Implicit conversion from float 4294967295 to int loses precision in /var/www/html/wp-includes/pomo/mo.php on line 203PHP message: PHP Deprecated:  Implicit conversion from float 4294967295 to int loses precision in /var/www/html/wp-includes/pomo/mo.php on line 203PHP message: PHP Deprecated:  DateTime::__construct(): Passing null to parameter #1 ($datetime) of type string is deprecated in /var/www/html/wp-includes/script-loader.php on line 333PHP message: PHP Deprecated:  ltrim(): Passing null to parameter #1 ($string) of type string is deprecated in /var/www/html/wp-includes/wp-db.php on line 3030PHP message: PHP Deprecated:  Implicit conversion from float 4294967295 to int loses precision in /var/www/html/wp-includes/pomo/mo.php on line 203PHP message: PHP Deprecated:  Implicit conversion from float 4294967295 to int loses precision in /var/www/html/wp-includes/pomo/mo.php on line 203PHP message: PHP Deprecated:  Implicit conversion from float 4294967295 to int loses precision in /var/www/html/wp-includes/pomo/mo.php on line 203PHP message: PHP Deprecated:  Implicit conversion from float 4294967295 to int loses precision in /var/www/html/wp-includes/pomo/mo.php on line 203PHP message: PHP Deprecated:  Return type of Requests_Cookie_Jar::offsetExists($key) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/Requests/Cookie/Jar.php on line 63PHP message: PHP Deprecated:  Return type of Requests_Cookie_Jar::offsetGet($key) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/Requests/Cookie/Jar.php on line 73PHP message: PHP Deprecated:  Return type of Requests_Cookie_Jar::offsetSet($key, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/Requests/Cookie/Jar.php on line 89PHP message: PHP Deprecated:  Return type of Requests_Cookie_Jar::offsetUnset($key) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/Requests/Cookie/Jar.php on line 102PHP message: PHP Deprecated:  Return type of Requests_Cookie_Jar::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/Requests/Cookie/Jar.php on line 111PHP message: PHP Deprecated:  Return type of Requests_Utility_CaseInsensitiveDictionary::offsetExists($key) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/Requests/Utility/CaseInsensitiveDictionary.php on line 40'
[Sat Feb 26 08:33:55.831255 2022] [proxy_fcgi:error] [pid 18959] [client 91.211.91.184:48096] AH01071: Got error 'PHP message: PHP Deprecated:  Return type of Requests_Utility_CaseInsensitiveDictionary::offsetGet($key) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/Requests/Utility/CaseInsensitiveDictionary.php on line 51PHP message: PHP Deprecated:  Return type of Requests_Utility_CaseInsensitiveDictionary::offsetSet($key, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/Requests/Utility/CaseInsensitiveDictionary.php on line 68PHP message: PHP Deprecated:  Return type of Requests_Utility_CaseInsensitiveDictionary::offsetUnset($key) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/Requests/Utility/CaseInsensitiveDictionary.php on line 82PHP message: PHP Deprecated:  Return type of Requests_Utility_CaseInsensitiveDictionary::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /var/www/html/wp-includes/Requests/Utility/CaseInsensitiveDictionary.php on line 91PHP message: PHP Deprecated:  strlen(): Passing null to parameter #1 ($string) of type string is deprecated in /var/www/html/wp-includes/Requests/Transport/fsockopen.php on line 170PHP message: PHP Warning:  Constant WP_DEBUG already defined in /var/www/html/wp-config.php on line 101PHP message: PHP Warning:  Constant WP_DEBUG_LOG already defined in /var/www/html/wp-config.php on line 104PHP message: PHP Deprecated:  trim(): Passing null to parameter #1 ($string) of type string is deprecated in /var/www/html/wp-includes/class-wp.php on line 173PHP message: PHP Deprecated:  ltrim(): Passing null to parameter #1 ($string) of type string is deprecated in /var/www/html/wp-includes/wp-db.php on line 3030'
[Sat Feb 26 08:33:55.854602 2022] [proxy_fcgi:error] [pid 18959] [client 91.211.91.184:48096] AH01071: Got error 'PHP message: PHP Deprecated:  ltrim(): Passing null to parameter #1 ($string) of type string is deprecated in /var/www/html/wp-includes/wp-db.php on line 3030'
[Sat Feb 26 08:33:55.902525 2022] [proxy_fcgi:error] [pid 18959] [client 91.211.91.184:48096] AH01071: Got error 'PHP message: PHP Deprecated:  ltrim(): Passing null to parameter #1 ($string) of type string is deprecated in /var/www/html/wp-includes/wp-db.php on line 3030PHP message: PHP Deprecated:  ltrim(): Passing null to parameter #1 ($string) of type string is deprecated in /var/www/html/wp-includes/wp-db.php on line 3030'

アドバイスに感謝いたします。

＞wp-content/themesやwp-content/plugins直下のフォルダをリネームすれば無効化出来ると思います。

両方をやってみましたが、結果は駄目でした。テーマをリネームした場合には、HP自体が表示されずに、エラーメッセージの羅列となりました。

手詰まりです。
他にお気づきの点がありましたら、お知らせください。

ご教示ありがとうございます。早速、手動アップグレードをしてみました。

ダッシュボードに入るところまでは行き着きました。
ですが、肝心のHPを表示できません。

以下のようなエラーが出ています。コメント頂ければ有り難いです。

Deprecated: class-http.php is deprecated since version 5.9.0! Use wp-includes/class-wp-http.php instead. in /var/www/html/wp-includes/functions.php on line 5506

Deprecated: Implicit conversion from float 4294967295 to int loses precision in /var/www/html/wp-includes/pomo/mo.php on line 203

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このサイトで重大なエラーが発生しました。

WordPress のトラブルシューティングについてはこちらをご覧ください。

ご教示ありがとうございます。

リンク先の情報（ファイルの上書き：wp-settings.php）で、HP自体は表示されるようになりました。
一方で、今度はダッシュボードに入れなくなってしまいました。ログインができません。

• この返信は3年前にjazzwalkerが編集しました。
• この返信は3年前にjazzwalkerが編集しました。

お手数かけました。

手動更新をやり直しました。ただ、それだけでは済まず、ある箇所でパーミッションの問題が生じ、すべて「許可」にしました。試行錯誤しました。

何とか、HPが表示でき、ダッシュボードにも入れるようになりました。

ただ、デバッグモードからも出たので、デバッグモードに戻した場合、多くのエラー、ウォーニングが出ているものと思われます。そのことが気がかりです。