People can't build? Essentials?

hello i just made a new server and am using
Essentials i de oped my self to see if you could build it now says {you are not permitted to use glowstone} it says that all over the world now you need op to build i need help finding out what the problem is plz help me



never mind just figured it out

EDIT by Moderator: merged posts, please use the edit button instead of double posting.