KiiPix manual Instax phone printer, for fixing (Seaford BN25)

KiiPix printer - this is a funny little device which lets you manually print Instax photos from a phone screen - fit film, open it up, put the lens in place, put your phone on top, expose a shit and then wind the knob to print out the photo. Seems to have stopped winding though, so listing as a possible fix-up project.