File "x" is corrupted (invalid or corrupted package (PGP signature)). Do you want to delete it?

[dalto]

Have you tried what is suggested in this post?

EndeavourOS keyring updated, users should update soon

Today package endeavouros-keyring was updated. This means users should update this package as soon as possible in order to avoid issues when updating other packages. Similar to what we have been doing when Arch keyring updates, you should run commands sudo pacman -Sy endeavouros-keyring sudo pacman -Syu Edit 2023.05.28: Alternatively, you can run command eos-update

If that doesn’t work, please share the output of sudo pacman -Syu