I can't update my KDE!

[anon89812132]

Open terminal and run:

sudo pacman-mirrors -f5 && pamac update

and if that is not enough, read this:

GLIBC out of date, keyring bugged

Sounds like your system is in a partial update state. Either try downgrading gpg by directly installing an older version from your package cache in /var/cache/pacman/pkg or directly download the current glibc-package from a mirror and install it by hand With any luck a full system update works after that.