Editor's Notes & Price Research
Nova Launcher has a 4.5 out 5 star rating in 724,715 user reviews on Google Play, and allows many great customization features for Android devices ~RevOne
- Open your device Settings menu
- Press Applications (if you don't see it, press More and it'll be on the next menu)
- Swipe from right to left until you see All at the top
- Press BadgeProvider
- Press "Clear Data" then "Force Stop"
Then open the email app and return to Nova.
This one worked for me.