Hi, @Harairoro welcome to the community, I think you may find the cause of your problem in your phone settings. (let us know the make, model & oS) In an Android phone go to the phone settings>apps>Fitbit>App battery usage>set to unrestricted>go to pause activity if unused & turn off. While in the settings you might also clear the cache. Let us know how you get on.
Cheers
Gr4ndp4 | UK
AWAKE! for morning in the bowl of light has cast the stone that set the stars to flight.
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