Home Assistant (Docker) Crashing Several Times Per Hour

Beginning a few days ago, my Home Assistant began crashing. I have a home-assistant.log.fault littered with:

Thread 0x00007fa5c7a0eb30 (most recent call first):
File “/usr/local/lib/python3.10/concurrent/futures/thread.py”, line 81 in _worker
File “/usr/local/lib/python3.10/threading.py”, line 953 in run
File “/usr/local/lib/python3.10/threading.py”, line 1016 in _bootstrap_inner
File “/usr/local/lib/python3.10/threading.py”, line 973 in _bootstrap

I have so far:
Recreated the Docker container (pulling a new image, latest version) - no change
Restored from a backup that predates the issue

I run Docker on a Synology NAS and it’s been stable for years. I’m somewhat at a loss where to start looking as, to me, this should not be happening with restoring from backups. Further, all my other Docker Containers are just fine.