Fatal error: Uncaught Error: Call to a member function getData() on null in /var/www/livedemo/bk_theme/app/code/Magetop/Bookingonline/view/frontend/templates/product/view/calendars.phtml:22 Stack trace: #0 /var/www/livedemo/bk_theme/vendor/magento/framework/View/TemplateEngine/Php.php(59): include() #1 /var/www/livedemo/bk_theme/vendor/magento/framework/View/Element/Template.php(271): Magento\Framework\View\TemplateEngine\Php->render(Object(Magetop\Bookingonline\Block\BookPage), '/var/www/livede...', Array) #2 /var/www/livedemo/bk_theme/vendor/magento/framework/View/Element/Template.php(301): Magento\Framework\View\Element\Template->fetchView('/var/www/livede...') #3 /var/www/livedemo/bk_theme/vendor/magento/framework/View/Element/AbstractBlock.php(1094): Magento\Framework\View\Element\Template->_toHtml() #4 /var/www/livedemo/bk_theme/vendor/magento/framework/View/Element/AbstractBlock.php(1098): Magento\Framework\View\Element\AbstractBlock->Magento\Framework\View\Element\{closure}() #5 /var/www/livedemo/bk_theme/vendor/m in /var/www/livedemo/bk_theme/app/code/Magetop/Bookingonline/view/frontend/templates/product/view/calendars.phtml on line 22