I have encountered the following problem

i use this comment :
sudo apt autoclean
sudo apt autoremove
and now i don’t have setting app in my ubuntu

I have a quite peculiar problem. One of my internal disc (HDD – NTFS) unmounted on it’s own when my PC restarted. After that (and mounting the disc again) I cannot see data in one of my folders (there were over 800 files there). What is even stranger: I got one of those files removed, it’s still in the trash bin – when I try to restore it there is a window informing that I will have to either abort it or replace file in destination (so those files are still there, yet I cannot reach them). Also, the space is still occipied.

emoving mysql-server-8.0 (8.0.36-0ubuntu0.23.10.1) …
update-alternatives: warning: alternative /etc/mysql/my.cnf.fallback (part of link group my.cnf) doesn’t exist; removing from li
st of alternatives
update-alternatives: warning: alternative /etc/mysql/mysql.cnf (part of link group my.cnf) doesn’t exist; removing from list of
alternatives
update-alternatives: error: cannot stat file ‘/etc/alternatives/my.cnf’: Invalid argument
dpkg: error processing package mysql-server-8.0 (–remove):
installed mysql-server-8.0 package post-removal script subprocess returned error exit status 2
dpkg: too many errors, stopping
Errors were encountered while processing:
mysql-server-8.0
Processing was halted because there were too many errors.
E: Sub-process /usr/bin/dpkg returned an error code (1)

Just installed ubuntu on my Dell Precision 3591 and after installing it the GUI won’t start
I have ubuntu 22.04 with the 6.5.0-28-generic kernel