As you might know, all witness nodes with less than 32 GB ran out of space today*.
I was prepared and have a 64 GB server already set up.
I made a mistake however, and ran that server with the wrong config.
It just crashed too.
I have disabled my witness, while I replay and bring my servers back online.
Sorry about another missed block.
The problem should be fixed soon.
* unless you run on ZRAM, perhaps