3
Yes, I have php5
It works perfectly with clean install, but once I enter to module settings in admin section it colapse...
I tried just to enter and exit without making any changes and the checkout stops working imiediatly, i am getting error 500...
Please help.
In the admin section there is warning:
Warning: constant() [function.constant]: Couldn't find constant Gateway used by the module in file /modules/system/admin/preferences/main.php line 298