Fatal error: Uncaught Error: Call to undefined function add_filter() in /home/malvernj/public_html/wp-content/plugins/cpt-onomies/cpt-onomy.php:22 Stack trace: #0 /home/malvernj/public_html/wp-content/plugins/cpt-onomies/cpt-onomy.php(5): CPT_TAXONOMY->__construct() #1 {main} thrown in /home/malvernj/public_html/wp-content/plugins/cpt-onomies/cpt-onomy.php on line 22