Fatal error: Uncaught Error: Class 'AC\Iterator' not found in C:\xampp\htdocs\wp-content\plugins\admin-columns-pro\classes\ConditionalFormat\RuleCollection.php:10 Stack trace: #0 {main} thrown in C:\xampp\htdocs\wp-content\plugins\admin-columns-pro\classes\ConditionalFormat\RuleCollection.php on line 10