Plasma shell does not work

My system:
R7 7500f
GTX 1660 super
32 gb

I completely reinstalled the system. Downloaded a couple of packages and rebooted. I downloaded such packages as zapret, dnscrypto-proxy. Also executed a couple of commands, such as systemd.resolved.service. I don’t know what happened, because I’m new to Linux, but after rebooting, plasmashell does not work and there is no window with an error. When I try to run it, nothing happens, it just hangs. This is already the second time this has happened.
Added: When it goes to the lock screen, after it, there are not even any application windows, only a cursor.