2022-01-26 11:21:14,293 - synapse.metrics.background_process_metrics - 244 - ERROR - _handle_old_staged_events-1273 - Background process '_handle_old_staged_events' threw an exception
Traceback (most recent call last):
  File "/opt/venvs/matrix-synapse/lib/python3.9/site-packages/synapse/metrics/background_process_metrics.py", line 242, in run
    return await func(*args, **kwargs)
  File "/opt/venvs/matrix-synapse/lib/python3.9/site-packages/synapse/federation/federation_server.py", line 170, in _handle_old_staged_events
    room_version = await self.store.get_room_version(room_id)
  File "/opt/venvs/matrix-synapse/lib/python3.9/site-packages/synapse/storage/databases/main/state.py", line 65, in get_room_version
    return await self.db_pool.runInteraction(
  File "/opt/venvs/matrix-synapse/lib/python3.9/site-packages/synapse/storage/database.py", line 741, in runInteraction
    result = await self.runWithConnection(
  File "/opt/venvs/matrix-synapse/lib/python3.9/site-packages/synapse/storage/database.py", line 846, in runWithConnection
    return await make_deferred_yieldable(
  File "/opt/venvs/matrix-synapse/lib/python3.9/site-packages/twisted/python/threadpool.py", line 238, in inContext
    result = inContext.theWork()  # type: ignore[attr-defined]
  File "/opt/venvs/matrix-synapse/lib/python3.9/site-packages/twisted/python/threadpool.py", line 254, in <lambda>
    inContext.theWork = lambda: context.call(  # type: ignore[attr-defined]
  File "/opt/venvs/matrix-synapse/lib/python3.9/site-packages/twisted/python/context.py", line 118, in callWithContext
    return self.currentContext().callWithContext(ctx, func, *args, **kw)
  File "/opt/venvs/matrix-synapse/lib/python3.9/site-packages/twisted/python/context.py", line 83, in callWithContext
    return func(*args, **kw)
  File "/opt/venvs/matrix-synapse/lib/python3.9/site-packages/twisted/enterprise/adbapi.py", line 293, in _runWithConnection
    compat.reraise(excValue, excTraceback)
  File "/opt/venvs/matrix-synapse/lib/python3.9/site-packages/twisted/python/deprecate.py", line 298, in deprecatedFunction
    return function(*args, **kwargs)
  File "/opt/venvs/matrix-synapse/lib/python3.9/site-packages/twisted/python/compat.py", line 404, in reraise
    raise exception.with_traceback(traceback)
  File "/opt/venvs/matrix-synapse/lib/python3.9/site-packages/twisted/enterprise/adbapi.py", line 284, in _runWithConnection
    result = func(conn, *args, **kw)
  File "/opt/venvs/matrix-synapse/lib/python3.9/site-packages/synapse/storage/database.py", line 841, in inner_func
    return func(db_conn, *args, **kwargs)
  File "/opt/venvs/matrix-synapse/lib/python3.9/site-packages/synapse/storage/database.py", line 609, in new_transaction
    r = func(cursor, *args, **kwargs)
  File "/opt/venvs/matrix-synapse/lib/python3.9/site-packages/synapse/storage/databases/main/state.py", line 84, in get_room_version_txn
    room_version_id = self.get_room_version_id_txn(txn, room_id)
  File "/opt/venvs/matrix-synapse/lib/python3.9/site-packages/synapse/storage/databases/main/state.py", line 132, in get_room_version_id_txn
    raise NotFoundError("Could not room_version for %s" % (room_id,))
synapse.api.errors.NotFoundError: 404: Could not room_version for !YDqJPFEKtBIEGBHqZE:matrix.org