Problem with view.html.php line 206

[kantiork]

I just start with VM and I got problem.
In confirmed mail for customer in head I've got message:
"Hacking attempt, you got logged
Warning: Invalid argument supplied for foreach() in /components/com_virtuemart/views/invoice/view.html.php on line 206"
I do not know what's going on. Although I want to eliminate this message from mail text.
I apologize for my language, but English is not my native language.
Thank God for Google Translator 

Ok, problem with "Warning..." solved, I change error report in server.
But still the problem of hacking error.