Fatal error: Uncaught Error: Call to a member function getFirstname() on null in /var/www/vhosts/aabcollection.com/htdocs/app/code/PL/Salenotice/Block/Item.php:195 Stack trace: #0 /var/www/vhosts/aabcollection.com/htdocs/app/code/PL/Salenotice/view/frontend/templates/list.phtml(3): PL\Salenotice\Block\Item->getSalenoticeCollection() #1 /var/www/vhosts/aabcollection.com/htdocs/vendor/magento/framework/View/TemplateEngine/Php.php(59): include('/var/www/vhosts...') #2 /var/www/vhosts/aabcollection.com/htdocs/vendor/magento/framework/View/Element/Template.php(270): Magento\Framework\View\TemplateEngine\Php->render(Object(PL\Salenotice\Block\Item), '/var/www/vhosts...', Array) #3 /var/www/vhosts/aabcollection.com/htdocs/vendor/magento/framework/View/Element/Template.php(300): Magento\Framework\View\Element\Template->fetchView('/var/www/vhosts...') #4 /var/www/vhosts/aabcollection.com/htdocs/vendor/magento/framework/View/Element/AbstractBlock.php(667): Magento\Framework\View\Element\Template->_toHtml() #5 /var/www/vhosts/aabcol in /var/www/vhosts/aabcollection.com/htdocs/app/code/PL/Salenotice/Block/Item.php on line 195