Invalid arm builders key

Hi,

I cannot update the latest packages because of an invalid arm builders pgp key:

signature from “Arch Linux ARM Build System builder@archlinuxarm.org” is unknown trust

I have deleted the /etc/pacman.d/gnupg 3 times, cleared the cache 3 times, downloaded over 600 packages 3 times…

I keep importing invalid arch builder key.

A valid arch builder key would be appreciated.

Kind regards,

3rwin