One of the repositories we had listed in the [email protected] in mls.json was archived (via Github) and the reporting to the mailing list stopped being delivered shortly thereafter. I'm not 100% sure that is the issue, but thought I'd raise this to see if archival of a repository could cause an error. I've since removed that repository in PR #252 and will be able to report back if it works correctly after next Monday. Just mentioning it here in case anyone else hits the same issue.