Since the last update no login possible

Support
#1

ā€¦ since the last great update yesterday i cannot login, here the login screen:

https://i.imgur.com/Y5BIqi4.jpg(image larger than 1024KB)

ā€¦ in the meantime there was an update in the tty with many errors, what that:

https://i.imgur.com/pSlKguX.jpg(image larger than 1024KB)

Many thanxxx in advance, i don`t wanna make a fresh install because of some important files on my HDD :sob:

#2

ā€¦ with this i get my normal login-screen back, can login, but now i have a black screen !!!

pacman -S --overwrite "*" kcoreaddons kdbusaddons kwindowsystem kcodecs kconfig kirigami2 kquickimageeditor knotifications ki18n
#3