Fatal error: Uncaught Error: Call to undefined function add_filter() in /home/exactt6/docs.exactthemes.com/docs.exactthemes.com/wp-includes/default-filters.php:22
Stack trace:
#0 {main}
thrown in /home/exactt6/docs.exactthemes.com/docs.exactthemes.com/wp-includes/default-filters.php on line 22