I think you might want to consider a major rewrite.
you've got many many errors and its doing routines that don't even make sense.
For example, on PTR where I have no guild its over 11k db lookups!!!

and still climbing!
the gui is completely blank.

your "optional" dependencies are infact NOT optional... etc.
all 36 of those errors are GG caused errors.

Yeah, I hate to say it, but I agree. At this point, GuildGreet-Extended, which has always been a "must have" addon for me, has become so error-ridden I can't run it any more - even when I've run it alone with no other addons. If you need help, because I'd guess this'd be a huge time sink, just let folks know you're working on it. If it'd help to incentivize, I'd be happy to donate some $$$ toward the project for your time.

I dont play shadowlands anymore, becasue shadowlands is crap. I will take a look in dragonfly; mb its better. for Shadowlands i will not release any update

Well, you're in luck. All the DF files getting d/l'd today (Tuesday Oct 18), the majority of UI game changes for Dragonflight will probably go live next Tuesday (Oct 25). For those who have been in the beta, including multiple youtubers, this is gonna be a return to the glory days of WoW.