ramsampathi

I am using onestepcheckout module in my site and we go a error like Fatal error: Uncaught Error: Call to a member function getFee() on null in Sivajik34/CustomFee/Plugin/Checkout/Model/ShippingInformationManagement.php:41 Stack trace:...

main.CRITICAL: Class Magento\ConfigurableProduct\Model\Resource\Product\Type\Configurable does not exist

3

After installed this extension i got an 404 error product view page. And checked in exception log i see like this below error.can u please give me the solution for...