Fatal error: Uncaught Error: Call to undefined function wp_nonce_field() in C:\xampp\htdocs\wp-content\plugins\admin-columns-pro\admin-columns\templates\admin\page\settings-section-restore.php:2 Stack trace: #0 {main} thrown in C:\xampp\htdocs\wp-content\plugins\admin-columns-pro\admin-columns\templates\admin\page\settings-section-restore.php on line 2