If you are receiving a "you must grant all permissions required by the app", you may have to take these simple steps to resolve the issue:
1) go to FB app settings - Remove Stellar
2) Make sure that you have an email address connected to your FB account
3) Clear Cache
4) Try again
*Please note, we are only using FB to verify location to ensure we are in compliance with regulatory authorities in your area. We will not use or store your Facebook data for any other purposes.