Okay, so i did the following:
- Removed downloads of packages that show as invalid signature:
sudo rm /var/cache/pacman/pkg/jbigkit-2.1-7-x86_64.pkg.tar.zst
sudo rm /var/cache/pacman/pkg/foomatic-db-nonfree-ppds-3:20230903-1-any.pkg.tar.zst
sudo rm /var/cache/pacman/pkg/unrar-1:6.2.11-1-x86_64.pkg.tar.zst
It showed me that i have problems with “archlinux.thaller.ws”, i kept updating my mirrors earlier but it kept adding it, so i picked mirrors from different region.
2. run
sudo pacman -Syu
Problem solved, it seems the mirror stuff was the issue.