Fatal error: Uncaught Error: Call to undefined function acf_get_post_type_from_request_args() in C:\xampp\htdocs\wp-content\plugins\advanced-custom-fields\includes\admin\views\acf-field-group\options.php:20 Stack trace: #0 {main} thrown in C:\xampp\htdocs\wp-content\plugins\advanced-custom-fields\includes\admin\views\acf-field-group\options.php on line 20