Hello,
On a localhost it's the more easy way for us to help you, if yopu have a test server that would be more quick.
But, let's try something, can you :
- Go to System => Global Configuration,
- Click on Server tab
- Set Error reporting to Maximum
See attachement errorReporting2
- Make me a screenshot like this screenshotExa
I need something clear and easy to read (especially red parts on my screenshot example) and so I can check several things.
Second point, I need a screenshot for your payment plugin configuration please.
Awaiting news from you.
Regards.