Hello,
I am getting an error while trying to order as a guest in magento2.2.
"Forbidden
You don't have permission to access /checkout/cart/add/uenc/aHR0cHM6Ly9wYXJhbWFuYW5kYXl1cnZlZGEuY29tLw,,/product/42/ on this server.
Additionally, a 403 Forbidden error was encountered while trying to use an ErrorDocument to handle the request."

I run following command to solve this problem
php bin/magento indexer:reindex
php bin/magento cache:clean
php bin/magento setup:upgrade
php bin/magento setup:di:compile
But not able to find the solution for the issues.
Please help me to solve this problem.