@crt56 Hi crt
I found out that it was all the 3D secure payments that failed ( if you have an International site, it would probably be all payments from EU )
After debugging with completely misleading error messages from plugin ( and this useless support ), I ended up guessing that the problem had to do with the fact that the plugin runs code from another server.
As a standard security feature, many servers prevent running code from other servers, but you need this function for 3D secure payments to work ( at least in this implementation )
So you should try and see if your server or a security plugin, prevents this functionality. I would start with checking PHP config, and see if allow_url_fopen and allow_url_include is turned off…
Good luck ?? Hope you get it fixed ??