Could not open file /var/lib/pacman/local/g

[filo]

Hi there, welcome!

@dsebilleau

I have had a similar problem in the last four days

Nope, this looks like a different problem, so you should open a new topic.
Before doing that, give a look here, if there is anything you have not yet tried:

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…