Hello biketowork,
at Stridaforum!
Please jump here: Open the freewheel
(In this article you will find also links to other posts, via these you can find more images of worn-out freewheels.)
Maybe it’s possible to show us a pic with the teeth of your freewheel?
From here: Belt twisted twice
I’d recommend to buy a new one; the effort with the old wheel will not be worth the effect.