URGENT HELP NEEDED!!!
I've installed the DPS Enrollment plugin which is the only plugin available for Moodle which allows for credit card payments.
I've installed it, and opened a test account with "payment express", the gateway company.
Student now can pick a course, click continue, which takes them to the payment express interface. Student enters their credot card number, then clicks submit. Gets approval, BUT THEN.....
....when the click the NEXT button, which should take them back to our site, we are getting the following error:
"Coding error detected, it must be fixed by a programmer: Invalid database query parameter value"
PLEASE HELP!