Fatal error: Uncaught Error: Call to undefined function register_block_type() in /home/mikawata/shumon-mikawa.com/public_html/wp-content/plugins/insta-gallery/includes/controllers/BlockController.php:18 Stack trace: #0 /home/mikawata/shumon-mikawa.com/public_html/wp-content/plugins/insta-gallery/includes/controllers/BlockController.php(116): QLIGG_Block_Controller->init() #1 /home/mikawata/shumon-mikawa.com/public_html/wp-content/plugins/insta-gallery/includes/controllers/BlockController.php(122): QLIGG_Block_Controller::instance() #2 /home/mikawata/shumon-mikawa.com/public_html/wp-content/plugins/insta-gallery/includes/backend.php(38): include_once('/home/mikawata/...') #3 /home/mikawata/shumon-mikawa.com/public_html/wp-content/plugins/insta-gallery/includes/backend.php(13): QLIGG_Backend->includes() #4 /home/mikawata/shumon-mikawa.com/public_html/wp-content/plugins/insta-gallery/includes/backend.php(74): QLIGG_Backend::instance() #5 /home/mikawata/shumon-mikawa.com/public_html/wp-content/plugins/insta-gallery/includes/q in /home/mikawata/shumon-mikawa.com/public_html/wp-content/plugins/insta-gallery/includes/controllers/BlockController.php on line 18