Why doesnt my FB login button work

I just cannot get the login feature to work ---

Given URL is not allowed by the Application configuration.: 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.

I was told that I could use my main site - theactionsociety but I have mapped domains --

so -- actioninorlando.com is the same as orlandobusiness.theactionsociety.com

then I have classifieds.actioninorlando.com of orlandoclassifieds.actioninorlando and realestate.actioninorlando.com or orlandorealestate.theactionsociety.com

Now if I set the app to theactionsociety app -- and I go to the site by the way or orlandobusiness.theactionsociety.com -- it works, but if I go actioninorlando.com -- then I get the error that the domain does not match error above

So please tell me exactly how to do this - I have been messing with this for months trying to get it to work rigth