Hello Alex
You can see guide install and config module in file .doc in package
After you set App ID and App Secret you need click to "Save" button and after you save module please click button "Connect with Facebook". When you click button "Connect with Facebook" you need click Okay 3 step confirm Facebook. After you connect to Facebook successfully the Facebook information (facebook id, name, access token, facebook page) will automatic insert in module and you only choose Facebook Page you want get the events and Save module
Best regards
Bach Pham
