@AndreSol, welcome here!
As Iahawk writes, could be an easy fix. Depending where you live, prices for shop hours will vary greatly. Try to get it going on your own if you are a little bit handy and have some tools.
Selling as it is might save you trouble but costs you $$. I would not pay more than €200,- to €300,- (Italy) for a non runner with docs, 'cause could be anything from cardinal failing to nitbit.