trans problem

I have a 2019 Buick Enclave its stuck in park and i get a message transmission wont shift it was driving fine and shifting fine the only thing i have done recently is change the brakes and change the passenger side rear electric motor no transmission codes only codes im getting it for anti lock...

Me and my mechanic buddy had to replace a bad torque converter in my '99 Buick Century Limited and I saw the Trans Go shift kit online and thought "wow that fixes a lot of problems" ..well now it won't move out of park, the shifter moves, but the car doesn't and the pawl will click for a few...