I'm also getting Error 61, running:
PowMr POW-VM5K-III (another clone 48V/230V 5kW)
custom Lithium (Lev40 / 48V 10kWh) batterypack that has it's own BMS.
Question: would you recommend putting it on USE in #05? And then setup all other settings #12 48V, #13 51V, #26 53.2V, #27 54V, #29 48V ?