Loaded up my server earlier today (continuum) to find that my questbook was mysteriously blank. After checking server files I saw that the QuestDatabase.json had been malformed and the backup for it had also been malformed. Opening up a single player world and copying the QuestDatabase.json file from that world and replacing the old one with it immediately fixed the problem. The origin of this bug was last night since the most recent backup also had the same malforming issue so I don't have any relevant logs from the time of it happening. If I might make a suggestion for a fix, would it be possible to check for malforming during loading of a world and immediately overwrite with a last known working file?

Below is the damaged QuestDatabase.json. It cuts off at a seemingly random point as far as I can see.
QuestDatabase.zip