QuestUtils_GetQuestName fails in Classic

The BlizzardInterfaceCode for QuestUtils.lua is the same for Classic and BCC as of the current releases Classic 1.13.7.38704 and BCC 2.5.1.38988, but it appears that Classic does not have C_TaskQuest which causes calls to QuestUtils_GetQuestName to crash. In BCC it works fine.

Maybe you can just choose to not use it? nothing else is using it in framexml

classic_era is not really in development so I wouldn’t put much hope into it