Fatal error: Uncaught Error: Call to undefined function register_block_type() in /www/htdocs/w017f490/steirereis.com/wp-content/plugins/insta-gallery/includes/controllers/BlockController.php:20 Stack trace: #0 /www/htdocs/w017f490/steirereis.com/wp-content/plugins/insta-gallery/includes/controllers/BlockController.php(131): QLIGG_Block_Controller->init() #1 /www/htdocs/w017f490/steirereis.com/wp-content/plugins/insta-gallery/includes/controllers/BlockController.php(137): QLIGG_Block_Controller::instance() #2 /www/htdocs/w017f490/steirereis.com/wp-content/plugins/insta-gallery/includes/backend.php(38): include_once('/www/htdocs/w01...') #3 /www/htdocs/w017f490/steirereis.com/wp-content/plugins/insta-gallery/includes/backend.php(13): QLIGG_Backend->includes() #4 /www/htdocs/w017f490/steirereis.com/wp-content/plugins/insta-gallery/includes/backend.php(74): QLIGG_Backend::instance() #5 /www/htdocs/w017f490/steirereis.com/wp-content/plugins/insta-gallery/includes/qligg.php(32): include_once('/www/htdocs/w01...') #6 /www/htdocs in /www/htdocs/w017f490/steirereis.com/wp-content/plugins/insta-gallery/includes/controllers/BlockController.php on line 20