What should I do, please help

[Kresimir]

Read this:

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

TL;DR:

sudo pacman -Sy endeavouros-keyring
sudo pacman -Syu