Unable to update Zammad

[kwoodVisions]

Infos:

• Used Zammad version: 5.0
• Used Zammad installation type: (source, package, docker-compose, …) Package
• Operating system: Ubuntu 18.04
• Browser + version: Chrome - latest

Expected behavior:

Run sudo apt update and sudo apt upgrade commands to make sure Zammad is upgraded to latest version

Actual behavior:

When running sudo apt update, I get the following:

Err:7 https://dl.packager.io/srv/deb/zammad/zammad/stable/ubuntu 18.04 InRelease
  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY B6D583CCBD33EEB8
Reading package lists... Done
W: GPG error: https://dl.packager.io/srv/deb/zammad/zammad/stable/ubuntu 18.04 InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY B6D583CCBD33EEB8
E: The repository 'https://dl.packager.io/srv/deb/zammad/zammad/stable/ubuntu 18.04 InRelease' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.

Steps to reproduce the behavior:

Run: sudo apt update

I have already run:

 sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys B6D583CCBD33EEB8

but that didn’t fix anything, still getting the error.

Also made sure gpg is installed based on another post.

What am I missing?

[kwoodVisions]

Anyone have any idea?

[kwoodVisions]

I forgot to mention…

I used apt key to get a list of the keys and I see that key in there, although it’s parsed out in the key file instead of being one continuous strand of characters and numbers.

[kwoodVisions]

I finally figured it out…

Using apt-key, I deleted the pkgr key from the list and made sure it was deleted from the folder /etc/apt/trusted.gpg.d/ folder. I then used the Zammad install docs to add the repo and the key and then ran apt update again and it worked.