30 mph cutout to superman

I may be having a similar problem. Going to do a full battery inspection to see if there are any faulty connections. In the meantime, here’s the specific problem I’m facing (maybe a BMS cutoff?) Battery instantly drops from 41v to 14v when plugged into ESC

if theres not even any load on the battery and its still able to drop such a large voltage…i cant imagine how a battery would do that.