Fatal error: Uncaught Error: Call to a member function isStatic() on boolean in /var/www/vhosts/panora.gr/httpdocs/vendor/magento/module-eav/Model/Entity/Collection/AbstractCollection.php:492 Stack trace: #0 /var/www/vhosts/panora.gr/httpdocs/vendor/magento/module-catalog/Model/ResourceModel/Product/Collection.php(706): Magento\Eav\Model\Entity\Collection\AbstractCollection->addAttributeToSelect('*', 'price_in_points') #1 /var/www/vhosts/panora.gr/httpdocs/generated/code/Magento/Catalog/Model/ResourceModel/Product/Collection/Interceptor.php(154): Magento\Catalog\Model\ResourceModel\Product\Collection->addAttributeToSelect('*', 'price_in_points') #2 /var/www/vhosts/panora.gr/httpdocs/var/view_preprocessed/pub/static/app/design/frontend/Smartwave/porto/Magento_Catalog/templates/view/product_page_custom6.phtml(1): Magento\Catalog\Model\ResourceModel\Product\Collection\Interceptor->addAttributeToSelect('*', 'price_in_points') #3 /var/www/vhosts/panora.gr/httpdocs/vendor/magento/framework/View/TemplateEngine/Php.php(59): inclu in /var/www/vhosts/panora.gr/httpdocs/vendor/magento/module-eav/Model/Entity/Collection/AbstractCollection.php on line 492