There is a possibility, that “facebook.app” installed on your device is conflicting with Defenders.
If app is installed, try to disable or delete it and then try to connect FB account once again; unlike/like our page again. In case these advices haven`t been helpful, please, contact Support Team.
Here`s the list of information required:
-your Facebook page direct link,
-score info screenshot (main menu-leaders-friends).
We won`t be able to help you ASAP without this data.