I never did figure out why I am getting this error message in the store. It doesn't create an error in my error log in cpanel so its not something that is going on with the server, its directly related to the zencart files.
The funny thing is that it still sends out the order confirmation emails and shows the order in zencart. So everything is going through properly, it just won't come up with the confirmation page at the end.
Anyone have any ideas?