getting unknown error
 

how to figure out guys, from what addon it is?

Message: hopFramebuttonHop: Couldn't find relative frame: $parentDetails
Time: Mon Aug 24 14:51:32 2020
Count: 1

You need to find out what frame is the parent of hopFramebuttonHop and then see if there is a frame with the name addition of Details.

It could be a simple spelling error or a different named frame or unnamed frame or a frame that doesn't exist at all

how to do that?

Google shows this bugreport https://www.curseforge.com/wow/addon...mon/issues/565
Perhaps this is your addon?
Other than that: Disable all addons. Enable one by one until you find your problematic addon.

Edit: Searching on Globe ( https://www.townlong-yak.com/globe/w...FramebuttonHop ) shows this is created by
https://www.curseforge.com/wow/addons/server-hop which clearly shows there is not much hope to get a working version "TL;DR: Support of this addon has now been discontinued. I've quit WoW."

thanks lesson learned, do not install addon packages from 2018 :D