nikola crashes

This happened today:

root@mox: ~ # /usr/bin/nikola
Logrotate took 0.143828 seconds
Syslog parsing took 0.052778 seconds
Records parsed: 14
--- Logging error ---
Traceback (most recent call last):
  File "/usr/lib/python3.7/logging/handlers.py", line 934, in emit
ConnectionRefusedError: [Errno 111] Connection refused

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3.7/logging/handlers.py", line 937, in emit
  File "/usr/lib/python3.7/logging/handlers.py", line 855, in _connect_unixsocket
ConnectionRefusedError: [Errno 111] Connection refused
Call stack:
  File "/usr/bin/nikola", line 11, in <module>
    load_entry_point('nikola==3.1.0', 'console_scripts', 'nikola')()
  File "/usr/lib/python3.7/site-packages/nikola/__main__.py", line 83, in main
  File "/usr/lib/python3.7/site-packages/nikola/__main__.py", line 111, in send_parsed
Message: 'Sending records took 0.005299 seconds'
Arguments: ()
Sending records took 0.005299 seconds

I am not sure if it is an issue with not available syslog destination, however syslog-ng was running.