If you do buy another Fan Shim, you could try plugging your current Fan into the new board. That will tell you if the fan died, or the board failed. I wouldn’t chuck the fan in the bin just yet.
Another option is to cut the JST connector off, strip the end of the wires bare, and apply 5V to the red wire, ground to the black. If the fan spins its still good and usable.
This will work too for reusing the fan.