Minecraft Forums

I was testing out the new plugin I got (Core Protect) and I tried to rollback what my friend and I did earlier today. I said, /co rollback u:(His username) t:1d r:20. This said that his username was not recognized, and I checked for spelling errors and could not find and problems. I heard about something called MySQL or something before when I tried to install logblock. Do I need it for Core Protect too? If so, could somebody tell me how to install it with MCProHosting? Thankyou