Fatal error: Uncaught Error: Call to undefined function add_filter() in /home/xtflnckh/public_html/wp-content/plugins/megamenu/integration/zerif/functions.php:14 Stack trace: #0 {main} thrown in /home/xtflnckh/public_html/wp-content/plugins/megamenu/integration/zerif/functions.php on line 14