hashcat keeps stopping itself and I don't know why.

[hashcrash]

Do you have this warning, saying that the initial fan speed cannot be set?
If yes, you haven't set your fan speed manually to 100%, have you?

E.g. with something like:

Code:

nvidia-settings -a [gpu:0]/GPUFanControlState=1 -a [fan-0]/GPUTargetFanSpeed=100