Clearing App Notifications

[azibara22]

Hey guys, can anybody advise me on how to clear my notifications on the app? I.e. the little red number relating to the number unfulfilled orders, that shows on top of the app. I have fulfilled all orders to date and have ensured they are all archived. However, I have had the number 5 on top of my app for months now! Please help. It's really annoying lol