1) Would need additional details on the error you are seeing (ensure modules are updated, e.g. `git submodule init` and `git submodule update`
2) the installer is meant to be run on a clean install of the operating systems with no prior work done, it does not account for any preinstalled components.
3) a few people use 21.10 but one of the best ways to run EQEmu is via Akkstack Docker container which has everything already included. -
https://github.com/Akkadius/akk-stack
Discord is the best place to get the most assistance -
https://discord.gg/cAruxCamYy