Power module Matek CAN L4 BM

Do anyone can recommend good power module for HobbyWing X9Plux? I use to use Matek CAN L4 BM, but now i have some issues with them. They stop working during flight and i have message “Bad Battery”. And since that i have constant voltage 65V. I think the manufacture has changed somthing, so the module isn’t the same now. Do someone have the same problem?