Please do not complain about griefing. If you build a house it is your risk, this is survival, if you want to not get your items stolen, hide your chests. I am trying to handle this server as well as I can, none of my admins/mods are getting on, so i do need staff if you could ask if you want staff in-game.
Also it would be nice if you could leave a little reply down thar to help out my server a bit!
I was a server admin on another server called PotatoCraft. It has been shut down recently, but you may want to PM Potatoism to make sure he is OK with you using his server's name, seeing as there is still an official thread for it.
tl;dr: This name has already been used, ask the owner if you can use the name, and in the future, at least Search the name in the Search button to make sure it isn't already here.