Fatal error: Uncaught Error: Call to undefined function add_action() in /home/c1110355/public_html/wp-admin/includes/admin-filters.php:11 Stack trace: #0 /home/c1110355/public_html/wp-admin/includes/admin.php(22): require_once() #1 /home/c1110355/public_html/wp-admin/admin.php(40): require_once('/home/c1110355/...') #2 /home/c1110355/public_html/wp-admin/export.php(10): require_once('/home/c1110355/...') #3 /home/c1110355/public_html/wp-blog-header.php(13): include_once('/home/c1110355/...') #4 /home/c1110355/public_html/index.php(17): require('/home/c1110355/...') #5 {main} thrown in /home/c1110355/public_html/wp-admin/includes/admin-filters.php on line 11