twitch said there was an update. i updated it for classic wow. there is no name popping up when people log in or lvl or join. it is not working at all to greet anyone. has been like this for about 3 weeks now. i messaged on twitch but no reply maybe you will see this.

Then write a Bugreport top Twitch Client Team. I never released a Classic Version

Date: 2019-09-25 19:35:08
ID: 1
Error occured in: Global
Count: 1
Message: ..\AddOns\GuildGreet\GuildGreet.lua line 1290:
attempt to call global 'ShowFriends' (a nil value)
Debug:
[C]: ShowFriends()
GuildGreet\GuildGreet.lua:1290: GLDG_InitRoster()
GuildGreet\GuildGreet.lua:272: GLDG_OnEvent()
[string ":OnEvent"]:1:
[string ":OnEvent"]:1

Classic is and will never be supported ;)

its offered under classic wow on twitch might want to change that then so people don't think it works.