Fatal error: Uncaught Error: Class 'ACP\Controller' not found in C:\xampp\htdocs\wp-content\plugins\admin-columns-pro\classes\Search\RequestHandler\Comparison.php:18 Stack trace: #0 {main} thrown in C:\xampp\htdocs\wp-content\plugins\admin-columns-pro\classes\Search\RequestHandler\Comparison.php on line 18