Can't update anymore after restoring SnapShot

[dalto]

It looks like you may have an old keyring combined and/or a keyserver issue.

Either way, following the steps here is a good first step:

Issues with “signature is marginal trust”, "signature is unknown trust", or “invalid or corrupted package”

If you're getting an error similar to "Can’t update: signature from *** is marginal trust" or "invalid or corrupted package" you probably just need to update your package signing keys: sudo pacman -Sy archlinux-keyring chaotic-keyring sudo pacman -Syu If you have added any other repositories, e.g. BlackArch, then add their keyring to the list. Also make sure your system clock is correct! Of course, it's also possible that the package file actually is corrupt. Remove it from /var/cache/pacman…