Fatal error: Uncaught Error: Call to undefined function add_filter() in /home/antenaserwis/public_html/satserwis/wp-content/plugins/jetpack/modules/videopress/class.videopress-edit-attachment.php:33 Stack trace: #0 /home/antenaserwis/public_html/satserwis/wp-content/plugins/jetpack/modules/videopress/class.videopress-edit-attachment.php(21): VideoPress_Edit_Attachment->__construct() #1 /home/antenaserwis/public_html/satserwis/wp-content/plugins/jetpack/modules/videopress/class.videopress-edit-attachment.php(401): VideoPress_Edit_Attachment::init() #2 {main} thrown in /home/antenaserwis/public_html/satserwis/wp-content/plugins/jetpack/modules/videopress/class.videopress-edit-attachment.php on line 33