Fatal error: Uncaught Error: Call to undefined function add_filter() in /users/laufgruppe-lvb/www/wordpress/wp-content/plugins/UberMenuIconExtensions_3_0_1/includes/layouts.php:31
Stack trace:
#0 {main}
thrown in /users/laufgruppe-lvb/www/wordpress/wp-content/plugins/UberMenuIconExtensions_3_0_1/includes/layouts.php on line 31