Something happened and customers are getting the following Error when clicking on the CHECK-OUT button:
The www.mySITE.com page isn’t working www.mySITE.com is currently unable to handle this request. 500
I suspect this has to do with some kind of an upgrade I bet my hosting provider (HostForWeb) did.
What are the correct versions (requirements) of pHp, mySQL and Apache for Magento 18.104.22.168?
Any other ideas as to what might be causing this?