hmmmm....

code30 = drive motor encoder output signal fault
possible causes are:
- defective encoder
- loose or broken encoder belt or related hardware or wiring

code 44 = PC contactor detected closed when commanded open
possible causes are:
- defective coil driver
- welded PC contactor tips
- binding contactor plunger or related hardware
- bad contactor panel harness
- vehicle manager defective
- PC sense circuit defective (distribution board, PC sense line, power panel driver assy, or VFC)

code 60 = are you sure about this one? was it 6C maybe?
there is no code 60 in the manual that i can find.

if it were me i'd check the battery first, make sure its not discharged or defective or grounding to the frame in some manner