Power management board

pixhawk4 power management board got burned down during flight .we are using octacopter kde motors 465kv and 6s 30k tattu battery . is there any solution to this- now we are using a harness but we dont know is it correct way or not
please answer


I think that the reason is power management board can not endure high ampere.
this board can use under 120A

This link is reference of power management board

Sorry i can not write english very well