If you got a warning, you should use the pm system to talk to the mod who gave you the warning. You should be able to reply to the message they sent you the warning with.
At least, I've generally found the mods to be willing to talk through things when I don't understand what's going on. I believe, in the forum rules, it also recommends contacting Roland_StJude (whose name I might be mangling the exact spelling of, as I am not checking it directly right now), who can generally give advice on how the forum administrivia work. Anyway, good luck!