Fatal error: Uncaught Error: Call to undefined function add_action() in /usr/home/olgroup2/domains/tenkawp.olgroup2.usermd.net/public_html/wp-admin/includes/admin-filters.php:11
Stack trace:
#0 {main}
  thrown in /usr/home/olgroup2/domains/tenkawp.olgroup2.usermd.net/public_html/wp-admin/includes/admin-filters.php on line 11