I dont have permission

[LOST]

I installed Lunar without to much of a problem, used the prcompiled kernel etc , Basic setup.
AnyWay after loggin in 4 the first time etc I try to use "lin" "lin moonbase" "lin theedge" & I cant update or anything because I get message in red stating "You don't have permission to access /etc/lunar/local/config.1221" or "You don't have permission to access /var/state/lunar/depends.backup.873"
This means I cant do anything from here to start using Lunar ,as I cant even install a windowmanager because I dont have permission to do anything with lin it seems.
What has caused this & how can I change it.
If its something I did wrong during install then I dont mind reinstalling if it will give me Admin Access ,then I dont mind? or can I change something in a file.

[Guest]

I am not sure what it was that I did differently this time during reinstall but I now have priviladges back. i did add some things I didnt have before but I wouldn,t know what it was that fixed it.