Fatal error: Uncaught TypeError: Argument 1 passed to twoJGallery::getThumbnailId() must be of the type array, null given, called in /var/www/vhosts/stgregorymarnhull.dorset.sch.uk/httpdocs/wp-content/plugins/blog-mechanics-theme-gallery/frontend/gallery.php on line 242 and defined in /var/www/vhosts/stgregorymarnhull.dorset.sch.uk/httpdocs/wp-content/plugins/blog-mechanics-theme-gallery/frontend/gallery.php:307 Stack trace: #0 /var/www/vhosts/stgregorymarnhull.dorset.sch.uk/httpdocs/wp-content/plugins/blog-mechanics-theme-gallery/frontend/gallery.php(242): twoJGallery->getThumbnailId() #1 /var/www/vhosts/stgregorymarnhull.dorset.sch.uk/httpdocs/wp-content/plugins/blog-mechanics-theme-gallery/frontend/block/content.php(83): twoJGallery->getItems() #2 /var/www/vhosts/stgregorymarnhull.dorset.sch.uk/httpdocs/wp-content/plugins/blog-mechanics-theme-gallery/frontend/block/content.php(48): twoJGalleryContent->getPageItems() #3 /var/www/vhosts/stgregorymarnhull.dorset.sch.uk/httpdocs/wp-content/plugins/blog-mechanics-theme-gall in /var/www/vhosts/stgregorymarnhull.dorset.sch.uk/httpdocs/wp-content/plugins/blog-mechanics-theme-gallery/frontend/gallery.php on line 307