Fatal error: Uncaught TypeError: Argument 1 passed to iterator_to_array() must implement interface Traversable, null given in /var/www/html/crumz.net/vendor/magento/framework/View/Element/Html/Calendar.php:77 Stack trace: #0 /var/www/html/crumz.net/vendor/magento/framework/View/Element/Html/Calendar.php(77): iterator_to_array(NULL) #1 /var/www/html/crumz.net/vendor/magento/framework/View/Element/AbstractBlock.php(1100): Magento\Framework\View\Element\Html\Calendar->_toHtml() #2 /var/www/html/crumz.net/vendor/magento/framework/View/Element/AbstractBlock.php(1104): Magento\Framework\View\Element\AbstractBlock->Magento\Framework\View\Element\{closure}() #3 /var/www/html/crumz.net/vendor/magento/framework/View/Element/AbstractBlock.php(674): Magento\Framework\View\Element\AbstractBlock->_loadCache() #4 /var/www/html/crumz.net/vendor/magento/framework/View/Layout.php(566): Magento\Framework\View\Element\AbstractBlock->toHtml() #5 /var/www/html/crumz.net/vendor/magento/framework/View/Layout.php(542): Magento\Framework\View\Layo in /var/www/html/crumz.net/vendor/magento/framework/View/Element/Html/Calendar.php on line 77