JFBConnect, AppId in querystring wrong

Hello.
I have installed the component in my site (www.bboyworlditaly.com).
When I try to login with facebook (select the relative button) I got an error:
the facebook page- in the poup window- says: "Error while loading page from test".
(nb. "test" is the name of my old application; it does not exist anymore).
If I look in the URL of the popup window I see the following:
www.facebook.com/developers/login_error....nnect=1&type=connect
The app_id is wrong!
It is related to my old test application.
In the JFBConnect configuration there is the new application id: 148428291879125.

I have tried to create new apps (in facebook) updating the configuration of JFBConnect but the results is always the same: it uses the app id wrong.

Can you help me?

thanks
regards
Francesco

Thanks Alex, I have disabled the old component and now JFBConnect login works.
regards!