Site redirect

Hello,

Weeks ago i tried to put meterwinkel.nl/winkel/ as homepage. So i looked up documentation on the internat, i then changed a file via dreamweaver.

But that diddnt do the trick. No i accedently restored that wrong backup, and i dont know which file i need to modify again to get the site to work again, cos i cant get to any other part of the site, not even the admin panel.

Thanks in advance!