Available Packages

[jenkdarr]

When I select available packages it does not bring anything up. I have a Netgate SG-3100.

[Gertjan]

You mean this one :

Did it showed available packages in the past ?
It never showed any packages ?

Have a look at your :

You see the "Version information updated at Thu Feb 28 15:45:56 CET 2019" ?
What is your date / time ?

The question that takes care of 75 % of all "can't upgrade/update/install packages" cases : you broke the DNS, so pfSense itself can't reach out to the Internet anymore.
Repair or undo your DNS settings - go back to the "always works" mode : the one that was present by default.

If not, you are lined up for the conquest : "Asking a question without any useful information"