These little cameras have a weak point in the wind on mechanism, many advise against using 36 exposure films as the mechanism groans once you get past 24.
Breakages do seem pretty common. Mine have been fine for many rolls of film, mostly 36's, but one finally gave way this week. The broken part was too small to fix in itself, but I did manage to modify things slightly so the the camera can be used again.
I've documented the fix
here, worth looking at if yours breaks before you consign it to the bin.