openHAB crashed, log full of NUL bytes

[mstormi (Markus Storm)]

@Mhgglmmr

So my current understanding is that the stick I have is technically a SSD, just with a shape similar to a USB stick, thus being much more reliable than SD cards or USB sticks

I don’t think so. That would require a battery and a DRAM cache, eventually, both of which I think your stick does not have. There’s no way to verify if that truely is the cause of your problems, but short of other information, it’s not unreasonable to believe in that. Also check this post.