Operations with WordPress instance fail in Plesk WordPress Toolkit:
Failed to reset cache for the instance #568: PHP Fatal error: Uncaught Error: Class 'QodeStartitFramework' not found in /var/www/vhosts/example.com/httpdocs/wp-content/plugins/pluginname
PHP Warning: Undefined array key "SERVER_NAME" in /var/www/vhosts/example.com/httpdocs/wp-content/plugins/plugin_name/...
Error: Call to undefined function create_function()
Corrupted WordPress plugin.
Disable the WordPress plugin mentioned in the error message.
Note: If the corrupted WordPress plugin is required, try to reinstall it. If reinstallation does not help, contact plugin vendor to get further support.