Bug is docker version - WHOIS backup not working

[ghost]

Greetings!

I've been using domain_stats for some time and I love it. I've deployed it on docker version. As far as I understand - to fix missing RDAP queries from WHOIS - I've should use command: docker exec -it domain_stats and then inside container domain-stats-utils -f /host_mounted_dir/

Unfortunetly it throws error: Traceback (most recent call last): File "/usr/local/bin/domain-stats-utils", line 11, in <module> load_entry_point('domain-stats==1.0.1', 'console_scripts', 'domain-stats-utils')() File "/usr/local/lib/python3.6/dist-packages/domain_stats/utils.py", line 177, in main written += whois_patch_domain(domain, val.get("alerts"), val.get("freq"),) File "/usr/local/lib/python3.6/dist-packages/domain_stats/utils.py", line 96, in whois_patch_domain until_expires = (expires - now).total_seconds() TypeError: can't subtract offset-naive and offset-aware datetimes

How can I mitigate this?

And can you explain, WHOIS backup should be automaticly done by the engine or only manually by me using this command?