Problem with Facebook Login and SDK for campaign

[AngelOfBabylon]

Hello,
I have to integrate sdk of facebook with my android and IOS application to login and to track downloads and user actions after a campaign.
I tried to login with facebook but I have problems.
If I start the demo example AlFacebookLogin on android the app works but rightly tells me that there is no development user.
If instead I change the references to my facebook app I always have a crash in AlFMXFacebook in TJloginManager.JavaClass.getInstance.logInWithReadPermissions (TAndroidHelper.Activity, LCollection);

Could it be an App configuration problem?

Second question, is there the possibility of integrating the other functions of the facebook sdk?
Thanks and Bye
Massimiliano