Effectively, in zh_CN.mo as distributed on C::b web site (at least in the nosetup.zip version), there is this error (but I can't correct that). Probably, this zh_CN had a problem or was not updated as it should. The last version on launchpad, .po and .mo are OK and more, has been regularly updated (last contribution by Grit Clef: 2025-10-01)