You'll have to be a little more patient than that

We help as fast as we can. Sometimes, that's within an hour, sometimes it's a few, but we pride ourselves on being very fast overall.
As for your issue, that error is almost always caused by an improper Facebook App configuration. Are the recommendations in Autotune setup correctly? Specifically, your website URL and App Domain need to be correct. If they are not setup as the recommendations suggest, please update them. If it looks right, please post (or private message) the exact URL you are trying to login from and we can test from there.
Hope that helps,
Alex