So, first up; this is a pretty short guide, I think, I hope, lol, I'm going to try not to be too wordy and dad-joke-y this time. We'll see if I manage.   We'll need a mod that'll error on us; I presume if you're here, you do have one! The one that absolutely will error on 2.0.15 without fail is SubAccounts, so we all need to know how to fix that at some point. I have yet to run into a mod that errors on SMF 2.1, but the principle is the same, so, follow along here, too. When the packag