FusionPBX on Debian 10

[Truckin]

Hi,

I have an installation of FusionPBX on Debian 10 which has gone pretty smoothly. I can access the web gui and begin configuration with no issues. However, if I SSH into the Debian VPS I can't run "apt-get update". I think there's an issue with the repositories but I am not sure how to correct it?? see attached file for the error and any help would be appreciated.
Truckin

 

[balu]

If you are "root":

cd ~

then with CURL:

curl https://www.postgresql.org/media/keys/ACCC4CF8.asc | apt-key add -

OR with WGET:

wget -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | apt-key add -

 

[Truckin]

WOW! That worked perfectly! Thank you!
So, what was the issue that those above commands corrected?