We have a new permission system on the server, now to be able to build you have to be promoted to the 'builder' class.
New players to the server will not be able to build and your name will be in white. You will be promoted to builder once you have spent a bit of time on the server, then your name will be in blue, or 'aqua sunrise'. If there as an admin on (someone with a red name) ask them about changing rank.
If you've been on the server before but don't yet have build rights post on here and we will sort it out for you.
Thanks for bearing with us