ERROR OCCURED IN JOB: update_and_clean_index (APP: hyperkitty)
Traceback (most recent call last):
  File
"/usr/lib/python3/dist-packages/django_extensions/management/commands/runjobs.py",
line 40, in runjobs
    job().execute()
  File
"/usr/lib/python3/dist-packages/hyperkitty/jobs/update_and_clean_index.py", line
37, in execute
    run_with_lock(update_index, remove=True)
  File "/usr/lib/python3/dist-packages/hyperkitty/lib/utils.py", line 181, in
run_with_lock
    log.exception("Failed to update the fulltext index: %s", e)
  File "/usr/lib/python3/dist-packages/flufl/lock/_lockfile.py", line 447, in
__exit__
    self.unlock()
  File "/usr/lib/python3/dist-packages/flufl/lock/_lockfile.py", line 398, in
unlock
    raise NotLockedError('Already unlocked')
flufl.lock._lockfile.NotLockedError: Already unlocked