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I think this means that One is not syncing - some of your calories will show on the dashboard without a sync (your BMR calories - those you burn just keeping your body alive).
What do you normally sync to (phone, computer...)?
Has it synced ok in the past but has now stopped or has it never synced?
If you go to your web dashboard at https://www.fitbit.com/ and click the "gear" icon at the top right it will show when you last synced.
If it's never synced have you checked that your phone is supported at www.fitbit.com/devices
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