Hi @Michael-Powell this is from a Fitbit moderator in another post:
"Hi, everyone, thank you for sharing all these updates and screenshots about the error message that you're receiving when you open the app.
I've shared this information with the team and I just wanted to let you know that they're aware of this and will be releasing a fix with an upcoming app release. Thanks again for all your comments and feedback, they have been really helpful! "
Cool thanks 😊