Sponge Griefprevention claim flags?

I have Griefprevention 1.8.9 installed and i am the owner with all permissions using pex for sponge, but i do not have the permission to use /cf in game to make admin claimflags? I am confused, Please someone let me know why, i know theres a node but i cannot find it.

It’s literally all on the main post. It also says that you need to check the java file if they nodes are outdated:

Also I am not sure but I think you need:

Then why is this still happening???