Hello, can't install Openbox

[Bernyjb]

Hello everybody. First time here and first time using Manjaro.
A bit of background: been using Linux for about 12 years. Started with Ubuntu, then switched to Crunchbang (and fell in love with Openbox in the process), to then move to Fedora, and finally, following a series of disappointments with Fedora 34 and 35, here I am.
I’m definitely not an expert. As far as I’m concerned, the best feature any OS can have is to get out of the way while you’re working. As that, Openbox is just perfect.
Yet I just finished installing (or started installing), Manjaro xfce (I’m following Crunchbang’s model), and now I can’t install Openbox. Below is a screenshot of the messages I’m getting.
Could anybody help me? Thank you all in advance.

[Bernyjb]

Ok, “can’t embed media items”. here’s the code:

$ sudo pacman -S openbox
[sudo] password for bernardo: 
error: GPGME error: No data
error: GPGME error: No data
error: GPGME error: No data
error: GPGME error: No data
error: database 'core' is not valid (invalid or corrupted database (PGP signature))
error: database 'extra' is not valid (invalid or corrupted database (PGP signature))
error: database 'community' is not valid (invalid or corrupted database (PGP signature))
error: database 'multilib' is not valid (invalid or corrupted database (PGP signature))

[linux-aarhus]

• [root tip] Mitigate and prevent GPGME error when syncing your system

[napcok]

Maybe it is worth to check this

Manjaro Linux

[Bernyjb]

Thank you, I’m downloading it.

[Bernyjb]

linux-aarhus: sorry, that one didn’t work.