2014 420es shifter problem

2014 420es electric shift stopped working after 30 minutes of light riding. No clicking noise from solenoid at all. Let it sit for 30 minutes and it will shift up but not back down. It made a light click at first then nothing. The gear indicator blinks 1-1-2
Meaning flash once then again then 2 real fast. I don’t ride it hard mainly use it for property maintenance. I did buy it used though. Any help would be appreciated.