Fatal error: Uncaught Error: Call to undefined function H5APPlayer\Model\add_action() in /home/zooferta/public_html/soitgtnet/wp-content/plugins/pdf-poster/inc/Model/GlobalChanges.php:11 Stack trace: #0 /home/zooferta/public_html/soitgtnet/wp-content/plugins/pdf-poster/inc/Model/GlobalChanges.php(21): H5APPlayer\Model\GlobalChanges->__construct() #1 /home/zooferta/public_html/soitgtnet/wp-content/plugins/pdf-poster/inc/Model/GlobalChanges.php(55): H5APPlayer\Model\GlobalChanges::instance() #2 {main} thrown in /home/zooferta/public_html/soitgtnet/wp-content/plugins/pdf-poster/inc/Model/GlobalChanges.php on line 11