Facebook Synchronization has been removed on version 5.11.0
What does this mean?
You will no longer be able to login and bind your PickCrafter account with your Facebook account.
I made use of Facebook Sync, what do I do now?
If you are trying to recover your progress, and you had linked it with Facebook, we will need to send us your Facebook ID in order to help you recover the account.
You can find your Facebook ID at the bottom of this page:
Find your user ID for your apps and games on Facebook | Facebook Help Center
We recommend that you make use of our Email Sync feature that will bind your progress to your email address.
Please check out this page for more information on how to do so.