That’s hard to say. I can’t condone 3 in 1 starters except for temporary emergency use. But to solve your problem requires a bit of testing with a DVOM. Basically you have to open the compressor electrical cover, Power off and disconnected please, Remove the starter and capacitor connection to the compressor terminals. Then ohm out the windings for both the correct resistance and no short to ground. Most compressor manufacturer’s publish winding specs, starter model, capacitor spec.
BTW, do you hear the overload “click” upon energizing? It could be the problem if open. When you energize the compressor, you should feel and hear a hum. Then a vibration of the motor running and a rise in heat of the high side tubing. If after a few seconds you hear a “click”, the overload has tripped. If not, either the motor is not getting power or is running, but not pumping refrigerant. Mechanical failure or liquid failure.