Fatal error: Uncaught Error: Call to undefined method Magento\Eav\Model\Entity\Attribute\Backend\DefaultBackend\Interceptor::getResource() in /html/vendor/magento/module-catalog/Model/ResourceModel/Product/Collection.php:2135 Stack trace: #0 /html/vendor/magento/module-catalog/Model/ResourceModel/Product/Collection.php(2108): Magento\Catalog\Model\ResourceModel\Product\Collection->getTierPriceSelect(Array) #1 /html/vendor/magento/module-quote/Model/ResourceModel/Quote/Item/Collection.php(301): Magento\Catalog\Model\ResourceModel\Product\Collection->addTierPriceDataByGroupId('0') #2 /html/vendor/magento/module-quote/Model/ResourceModel/Quote/Item/Collection.php(219): Magento\Quote\Model\ResourceModel\Quote\Item\Collection->addTierPriceData(Object(Magento\Catalog\Model\ResourceModel\Product\Collection\Interceptor)) #3 /html/vendor/magento/module-quote/Model/ResourceModel/Quote/Item/Collection.php(177): Magento\Quote\Model\ResourceModel\Quote\Item\Collection->_assignProducts() #4 /html/vendor/magento/framework/Data/Collectio in /html/vendor/magento/module-catalog/Model/ResourceModel/Product/Collection.php on line 2135