i was griefed by abvesco and he took all my redstone and other stuff

I'm sure this has been said multiple times on the server and on the forum;
"We need more information!"

Was it at your home, faction home, if not we need co-ordinates etc.
Just saying something happend won't get you anywhere

it was in the wilderness and iwas trading and then iwas killed by abviscus

That's not griefing then is it... you might want to look up the rules here

You got pvp killed, which by the way, it's perfectly legal here.

When a a faction has no admin, any faction member can get admin with /f admin nick (replace nick with you nick)

thanks sorry for the trouble