I tried ultimate facebook plugin and it worked perfectly

Hello,

I tried ultimate facebook plugin and it worked perfectly together with firefox and chrome.

However with the IE I keep getting the following message:

Die Anwendungseinstellungen lassen die angegebene URL nicht zu.: One or more of the given URLs is not allowed by the App’s settings. It must match the Website URL or Canvas URL, or the domain must be a subdomain of one of the App’s domains.

Do you know what I could do?

Thanks a lot,

Fabian