Fatal error: Uncaught Error: Undefined constant "SSF_WP_INCLUDES_PATH" in C:\xampp\htdocs\wp-content\plugins\superstorefinder-wp\ssf-wp-admin\pages\Add-ons.php:2 Stack trace: #0 {main} thrown in C:\xampp\htdocs\wp-content\plugins\superstorefinder-wp\ssf-wp-admin\pages\Add-ons.php on line 2