That error is because you’re trying to download a file from GitHub and I’m guessing this was on a PBS compute note, which has no internet access.
@CharlesTurner might have some idea if this is expected.
It looks like you’re using the hh5 conda/analysis3 environment:
Are we not using the xp65 environments for the intake catalogue generation?
I’d need to look into the cice issue, but @anton may have some idea.