I deleted something and can't access to my website!

TG / 2015-01-28 14:28:40   

Hello,
The other day while upgrading my website I accidentally deleted one section on which my main page was directed. I tried creating it again, but nothing seems to work. I'm contacted my web host, he says he can't do anything. I'm not good with all those internet thingy but really need my website as portfolio! Can anyone help me?
The page was redirected this way:
cie-tg.ch/indexhibit/…
Doesn't open....
Thanks.

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