Fatal error: Uncaught Error: Call to undefined function apply_filters() in /var/www/clients/client1/web4/web/wp-includes/error-protection.php:146 Stack trace: #0 /var/www/clients/client1/web4/web/wp-includes/error-protection.php(87): wp_is_fatal_error_handler_enabled() #1 /var/www/clients/client1/web4/web/wp-settings.php(66): wp_register_fatal_error_handler() #2 /var/www/clients/client1/web4/web/wp-config.php(110): require_once('/var/www/client...') #3 /var/www/clients/client1/web4/web/wp-load.php(51): require_once('/var/www/client...') #4 /var/www/clients/client1/web4/web/wp-blog-header.php(13): require_once('/var/www/client...') #5 /var/www/clients/client1/web4/web/index.php(237): require('/var/www/client...') #6 {main} thrown in /var/www/clients/client1/web4/web/wp-includes/error-protection.php on line 146