Login form instead of home page

[konpatsogiannis]

Hi. I have the website http://unikleen.net/
Due to a reason there is a login form instead of the home screen.
From the hosting they told me that it is due to virtuemart component and they asked me to delete it and reinstall it.

I have hundrends of products so this is not an option.

Do you know what is causing the problem?

Regards
Patsogiannis Konstantinos