I have a Cartthrob MSM installation (2 stores) that use sagepay (europe offsite) for processing payments.
Every time I try to make a payment through the sites, I get all the way through the payment process and at the very end I get the following error:
> HTTP Status Code: 500 > HTTP Status Message: The request was unsuccessful due to an unexpected condition encountered by the server. > Error Code : 5006 > Error Description : Unable to redirect to Vendor's web site. The Vendor failed to provide a RedirectionURL.
I've checked that extload.php is configured correctly, and when I output the NotificationURL value from the gateway plugin it looks correct:
Does anyone have any experience of this error and possible solutions? I contacted the hosts (Nexcess) who said they couldn't think of any security that might be on the server, stopping a callback from sage.
I've been trying to get these sites working for a week through a host of errors, I'm hoping this is the last hurdle.