I asked cscart support to look at our paypal api as paypal orders that have been paid in full are showing as open order status in the admin side.
Since 6pm last night we have 3 test paypal orders and no customer orders as the storefront has been left unusable. The message on the cscart support helpdesk says there "our technical support department is loaded heavily at the moment. You should expect our answer not earlier than in 1-2 business days. "
If they are working on a live site why dont they check that they have left the store usable. Pretty angry right now