Fatal error: Uncaught Error: Call to undefined function add_filter() in /srv/www/comaea/public_html/wp-content/plugins/ninja-forms-uploads/deprecated/includes/admin/add-attachment-type.php:18 Stack trace: #0 {main} thrown in /srv/www/comaea/public_html/wp-content/plugins/ninja-forms-uploads/deprecated/includes/admin/add-attachment-type.php on line 18