The oily innards of a camera.

[Praktica]

That one actually looks like one could service it, some of these more modern cameras are a nightmare+GST on the inside with so many little ribbon cables, tiny screws and outrageously complex mechanisms inside.

These can be serviced - usually all that is wrong with this type of shutter is dried out lubricant and dirt. Strip, clean and lubricate, and the shutter works. Unfortunately this particular one has that broken part, and there are no spares, other than what can be pillaged from a scrap camera. Replacing that escapement may then show up other faults - this may have been forced, when something else failed. 
I think this camera is destined for the parts bin.