Hi, try rebooting your Versa by pressing and holding the left and right lower buttons together untill the Fitbit logo appears on your display and release these buttons. Sometimes you have to reboot two to three times to solve the problem. If that does not do the trick, I'm afraid the only thing you can do is a factory reset. This can be done in two ways:
1. Go to settings on your Versa and scroll down to device info, click that, scroll down to factory reset and press it or, if you're not able anymore to go to the settings:
2. Press and hold all three buttons all together untill you feel a strong vibration and then release only the right lower button.
Mind though that after a factory reset, you will have to do the setup of your Versa with the Fitbit all over again. Hope this helps.
