It’s this link.
I installed FreePBX, it was good. I did the first updates of modules. And it broke. That’s… about it.
My current version of FreePBX is 18.104.22.168, and the “System Firewall” module is 22.214.171.124
I don’t know of a way to see every module that was changed in the first update, so I can’t list what changed.