@stephenw10 Ok I'll keep that in mind.
So I was able to use the console to go to an earlier configuration, reboot, and I was able to get into the WebGUI. Proceeded to immediately make a backup configuration on file just in case. Phew! Thanks for that suggestion, and thank the Devs for having such a feature available. Truly a lifesaver!
Next meeting we're gonna take it slow and only forward the ports that he needs. Maybe he won't need all of them.