07-19-2016 20:19
07-19-2016 20:19
07-20-2016 04:27
07-20-2016 04:27
Welcome to the Fitbit Forums @CindyLou8403! There's no specific reason why your phone is showing this error. However, you could start by setting up your tracker as a new device. I also recommend checking out these syncing troubleshoots. Make sure that there isn't another bluetooth device that may be creating interference during the process. Last but no least, make sure that your tracker is running the latest software version and your mobile device the latest version of the Fitbit app for iOs.
Hope this helps. Let me know the outcome.