Traceback error when attempting to publish SYNOP data bu using command line

[alimand]

When I attempt to publish SYNOP data (bufr format) by using command like:
wis2box data ingest --topic-hierarchy chn.babj.data.core.weather.surface-based-observations.synop --path /data/wis2box/observations/china/SURF/
I get the following traceback error:

Then we go througn the code, we found that when header="unexpandedDescriptors"， codes_get(bufr_in, header) get errors.
I am wondering whether "unexpandedDescriptors" should be removed from HEADERS?
Many thanks.