Fitbit App won't open

[McBuddy07]

The App won't open for days now.  It just keeps saying network server failed try back later.. what's going on with Fitbit

Moderator edit: subject for clarity

[LiliyaFitbit]

Welcome to the Fitbit Community, @McBuddy07.

I am sorry to hear you're unable to open the Fitbit app. I appreciate the additional details and I am here to help. I recommend doing the following:

1. Verify if the Fitbit app is updated to the latest version. For instructions, see this help article.
2. Force stop the Fitbit app on your phone: Settings > Applications > find the app > select it > select Force stop. 
3. Reboot your phone.
4. Try to open the Fitbit app.

I also recommend checking if you have turned on "Set automatically" for date and time on your phone: open your Android settings > tap General > tap Date & Time > and then toggle "Set Automatically" on. You can find additional tips for Android phones at What should I know about using the Fitbit app on my Android phone?

If the issue persists, please try to uninstall and reinstall the app. 

Keep me posted on the outcome. I'll be around if you have any questions.