Thanks.

Dukasaur thanks for answer.
I go in to setting menu on your link but I can't find where to set my password.

Can you help with more detail ?

At menu App Settings --> facebook
it's current status is Authorize.
May be I must change it to ReAuthorize or UnAuthorize ?????

I first log in to conquerclub via facebook.
I want Username & Password to log in to the game and to do nothing with facebook.

How can I got it ?