Fatal error: Uncaught Error: Call to undefined function add_filter() in /home/qwerasd1234/public_html/tom-test/wp-admin/includes/ms-admin-filters.php:11
Stack trace:
#0 {main}
thrown in /home/qwerasd1234/public_html/tom-test/wp-admin/includes/ms-admin-filters.php on line 11