URL invalid – Please respond to ticket

Pro user with Ticket #252:

Hi my problem is, that after the checkout and payment via Paypal, the Plugin has problems with the confinmation page /voucher-payment-successful/. It displays “This url is not valid. You cannot access this page directly.”

I already tried to regenerate the Plug-Ins default pages, but still can’t get it to work. in the first place it worked very well, but after some time it stopped working.

I already tried disabeling the other plug-ins but still no success. It’s a multilingual site so i suspect there is some problem with WPML, but that’s just my guess.

It is pretty urgent, as the Plug-In is already on the live site and christmas is imminent.

Thanks, help would be much appreciated!
Tom

The page I need help with: [log in to see the link]