I have a big problem in my website (DNN 4.6.2).
Last year I have successful installed the ventrian Friendlyurls "module".
http://www.ventrian.com/Resources/Projects/FriendlyUrls.aspx
One hour ago I have tried to disable this module modifying the web.config file. Exactly I have disable this string:

----> add name="UrlRewrite" type="Ventrian.FriendlyUrl.UrlRewriteModule, Ventrian.FriendlyUrl" <-------

but when I replace it after two minutes the same string, my website give me the error:

Module Load Warning
One or more of the modules on this page did not load. This may be temporary. Please refresh the page (click F5 in most browsers). If the problem persists, please let the Site Administrator know.

Why after I replace the string, the problem have not solved?
Maybe I have changed something in database?
Moreover I don't have anymore host and admin access.
eny help is apreciated
thanks
Marco