Auth.net and european merchant account

Hi guys, i have a problem with authorize.net in s2member.

Two weeks ago i started to make an european merchant account and today i finally get it. I set up all account details in s2member – hash, transaction id, etc. And now, if i try to make a payment, i get Error #326 – The request field(s) are either invalid or missing.

I google a little bit and i think the problem is that s2member is not compatible with european merchant accounts but i hope it is not true and i have mistake somewhere in my options.

Can you advice me what i have to do ? In my shortcodes i have set cc=”EUR” . I dont know what to do.

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