Traceback (most recent call last):
File "/usr/lib/python3.6/multiprocessing/pool.py", line 119, in worker
result = (True, func(*args, **kwds))
File "/usr/lib/python3.6/multiprocessing/pool.py", line 44, in mapstar
return list(map(*args))
File "/usr/lib/python3.6/site-packages/mass_server/bin/mass_scheduler.py", line 59, in _schedule_analysis_request
instances = InstanceDict._dict[system_id]
KeyError: ObjectId('5ab2385017187f000b14a9a4')
See https://sentry.hive.cs.uni-bonn.de/sentry/mass-server/issues/32/