Contact forms unexpected error

I've tried both ways ( PHP and SMTP) in the sendemail/+quickcontact files but no luck. Script seems to work since the red notification panel of unexpected error occurs and my hosting company told me that server is ok so probably is something wrong with the code.
The test page is [sb_private_reply]rousalibros.gr/test/index.html[/sb_private_reply]

Solved

Please remove this topic since I don't want to show my test page .thanks for your understanding.