How to add an insights user to your app:
1. Go to https://developers.facebook.com/apps (if you are not logged into Facebook, please do that first).
2. Click on your app's name:
3. Click on Roles
4. Click on Add Insights Users
5. Enter 100004913467610 (100004913467610 should appear in the drop down - click that). Click Submit. It should look like this: