Rad runner 2 motor help

Have a Rad Runner 2 that has a 35a controller with a 52v 24ah battery (both from Electro Bike World) motor is stock rad “750w” and you can probably guess what happed.. pretty sure the Hall sensor blew and she I throttle I can hear the motor activate with a high pitch sound but bike won’t move. It was bound to happen was able to get about 50+ miles before it blew but now I’m left with the problem of getting a new motor. Just wanted to see any suggestions on what I should do in this situation. Should I get a new 750w motor because I’ve heard Rads isn’t true 750, or do I upgrade to 1000w? I’m also able to adjust the current in my display as well