Warning: Undefined variable $block in /var/www/magento/html/app/design/frontend/bbnt/base/Magento_Wishlist/templates/item/list.phtml on line 9

Fatal error: Uncaught Error: Call to a member function getColumns() on null in /var/www/magento/html/app/design/frontend/bbnt/base/Magento_Wishlist/templates/item/list.phtml:9 Stack trace: #0 {main} thrown in /var/www/magento/html/app/design/frontend/bbnt/base/Magento_Wishlist/templates/item/list.phtml on line 9