APT invalid key for Debian 9 and Zabbix 3.0

[toma.luca95]

Hi,

I'm having issues with the Zabbix 3.0 repo in my Debian 9 box.

I installed the http://repo.zabbix.com/zabbix/3.0/de...tretch_all.deb package and when i run apt-get update i get the error:

W: GPG error: http://repo.zabbix.com/zabbix/3.0/debian stretch InRelease: The following signatures were invalid: FBABD5FB20255ECAB22EE194D13D58E479EA5ED4
W: The repository 'http://repo.zabbix.com/zabbix/3.0/debian stretch InRelease' is not signed.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.

I tried to add the GPG key with:

# apt-key adv --recv-keys --keyserver keyserver.ubuntu.com FBABD5FB20255ECAB22EE194D13D58E479EA5ED4
Executing: /tmp/apt-key-gpghome.94BZfKTiHF/gpg.1.sh --recv-keys --keyserver keyserver.ubuntu.com FBABD5FB20255ECAB22EE194D13D58E479EA5ED4
gpg: key D13D58E479EA5ED4: "Zabbix SIA <[email protected]>" not changed
gpg: Total number processed: 1
gpg:              unchanged: 1

But notthing changes.

Where I'm wrong?