サイトエラー

約一週間ぶりにサイトを更新しようとしたら管理画面が真っ白になってしまい、戸惑いながらネットで調べたらfunctions.phpを元のデータに戻すと書いてあったので、FTPでアップロードしたら、管理画面の他にトップ画面やカテゴリなど全ての画面にエラーが出てしまい何がなんらか分からなくなってしまいました。

頭の中が真っ白になっているので、分かる方がいましたら宜しくお願いします。

WPのフォルダを再アップロードしても同じ症状です。

Notice: Undefined index: post_type in /home/XXX/www/YYY/wp-content/plugins/custom-field-gui-utility/cfg-utility.php on line 80 Notice: Undefined index: post in /home/XXX/www/YYY/wp-content/plugins/custom-field-gui-utility/cfg-utility.php on line 81 Notice: Use of undefined constant PLUGIN_URL – assumed ‘PLUGIN_URL’ in /home/XXX/www/YYY/wp-content/plugins/delete-duplicate-posts/delete-duplicate-posts.php on line 84 Notice: Use of undefined constant PLUGIN_PATH – assumed ‘PLUGIN_PATH’ in /home/XXX/www/YYY/wp-content/plugins/delete-duplicate-posts/delete-duplicate-posts.php on line 85 Notice: Undefined index: action in /home/XXX/www/YYY/wp-content/plugins/facebook-like-button/main.php on line 52 Notice: load_plugin_textdomain was called with an argument that is deprecated since version 2.7 with no alternative available. in /home/XXX/www/YYY/wp-includes/functions.php on line 3468 Notice: Use of undefined constant ddsg_language – assumed ‘ddsg_language’ in /home/XXX/www/YYY/wp-content/plugins/sitemap-generator/sitemap-generator.php on line 45 Warning: session_start(): Cannot send session cache limiter – headers already sent (output started at /home/XXX/www/YYY/wp-content/plugins/custom-field-gui-utility/cfg-utility.php:80) in /home/XXX/www/YYY/wp-content/plugins/wordpress-simple-paypal-shopping-cart/wp_shopping_cart.php on line 23 Notice: get_settings is deprecated since version 2.1! Use get_option() instead. in /home/XXX/www/YYY/wp-includes/functions.php on line 3382 Notice: get_settings is deprecated since version 2.1! Use get_option() instead. in /home/XXX/www/YYY/wp-includes/functions.php on line 3382 ? Notice: add_option was called with an argument that is deprecated since version 2.3 with no alternative available. in /home/XXX/www/YYY/wp-includes/functions.php on line 3468 Notice: register_sidebar_widget is deprecated since version 2.8! Use wp_register_sidebar_widget() instead. in /home/XXX/www/YYY/wp-includes/functions.php on line 3382 Notice: register_widget_control is deprecated since version 2.8! Use wp_register_widget_control() instead. in /home/XXX/www/YYY/wp-includes/functions.php on line 3382 Notice: register_sidebar_widget is deprecated since version 2.8! Use wp_register_sidebar_widget() instead. in /home/XXX/www/YYY/wp-includes/functions.php on line 3382 Notice: register_widget_control is deprecated since version 2.8! Use wp_register_widget_control() instead. in /home/XXX/www/YYY/wp-includes/functions.php on line 3382 Notice: register_sidebar_widget の使用はバージョン 2.8 から非推奨になっています! 代わりに wp_register_sidebar_widget() を使ってください。 in /home/XXX/www/YYY/wp-includes/functions.php on line 3382 Notice: register_widget_control の使用はバージョン 2.8 から非推奨になっています! 代わりに wp_register_widget_control() を使ってください。 in /home/XXX/www/YYY/wp-includes/functions.php on line 3382 Notice: Undefined index: page in /home/XXX/www/YYY/wp-content/plugins/delete-duplicate-posts/delete-duplicate-posts.php on line 251 Notice: Undefined index: search-class in /home/XXX/www/YYY/wp-content/plugins/wp-custom-fields-search/extra_search_fields.php on line 250 Notice: Undefined index: search-class in /home/XXX/www/YYY/wp-content/plugins/wp-custom-fields-search/extra_search_fields.php on line 250 Notice: Undefined index: search-class in /home/XXX/www/YYY/wp-content/plugins/wp-custom-fields-search/extra_search_fields.php on line 250 Notice: Undefined index: aspo in /home/XXX/www/YYY/wp-content/plugins/astickypostorderer/astickypostorderer.php on line 141 Notice: Undefined index: aspo in /home/XXX/www/YYY/wp-content/plugins/astickypostorderer/astickypostorderer.php on line 147 Notice: Undefined index: 1 in /home/XXX/www/YYY/wp-content/plugins/astickypostorderer/astickypostorderer.php on line 191 Notice: Undefined index: 2 in /home/XXX/www/YYY/wp-content/plugins/astickypostorderer/astickypostorderer.php on line 219 Notice: Undefined index: 4 in /home/XXX/www/YYY/wp-content/plugins/astickypostorderer/astickypostorderer.php on line 247 Notice: Undefined variable: current_term_id in /home/XXX/www/YYY/wp-content/plugins/astickypostorderer/astickypostorderer.php on line 259 Notice: Undefined index: search-class in /home/XXX/www/YYY/wp-content/plugins/wp-custom-fields-search/extra_search_fields.php on line 250 Notice: Undefined variable: post in /home/XXX/www/YYY/wp-content/plugins/facebook-like-button/inc/fun.inc.php on line 16 Notice: Trying to get property of non-object in /home/XXX/www/YYY/wp-content/plugins/facebook-like-button/inc/fun.inc.php on line 16 Notice: Use of undefined constant is_single – assumed ‘is_single’ in /home/XXX/www/YYY/wp-content/plugins/facebook-like-button/inc/fun.inc.php on line 70