BQ34Z100-G1: Automatically in between discharging fuel gauge SOC goes Zero

hi,

I am using BQ34z100-G1 with a 30Ah 16S LFP battery. The first time I charged the battery to100 percent after fully charged, I connected a load and now the battery was discharging 20 amp rate. but in between the SOC level suddenly goes 74 to 0 percent and 22756 mah to 0 mah.

The Second time I charged the battery to 74 percent after that, I connected a load and now the battery was again discharging 20 amp rate. but in between the SOC level suddenly goes 50  to 0 percent and 14756 mah to 0 mah.

I don't know why it's happening. Can anyone please tell me why?

Setted paramenters are written below

update_design_capacity(30000)
update_q_max(30000)
update_design_energy(32767)update_EnergyScale(5)

update_cell_charge_voltage_range(3600, 3600, 3500) 
update_number_of_series_cells(8)
update_pack_configuration(0b0010100100100000) 
update_charge_termination_parameters(taper_current->100,min_taper_capacity-> 1000, cell_taper_voltage->100, taper_window-> 40,tca_set->  99, tca_clear-> 95, fc_set-> 100,fc_clear->  98)
calibrate_cc_offset();
calibrate_board_offset();
set_current_deadband(10);
ready();