Critical Ops won’t let me connect to my Facebook account anymore, how can I recover my data?

If you can't sign in to Critical Ops with Facebook anymore, make sure that your Facebook credentials are still valid and that Facebook hasn't locked you out or changed your login, as that can lead to authentication errors.

Next, do what the official troubleshooting steps say to do: remove Critical Ops from your Facebook app settings, clear the app's cache and data (on Android) or uninstall and reinstall (on iOS), start the game as a guest, choose a server by hand in Custom Games, and then try to log in with Facebook again.

If you used to connect your game account to Facebook and sign in with the same Facebook information on the new device, your data should be immediately restored.

Many people have shared their issues here and found resolutions. If you have one, feel free to reach out to Xolvie.