[how do i turn on command blocks?]

i know there is a button in the minehut server page but i cant find it, can some1 help me?

[cant join my server]

want to join my server to work on it but everytime i start it and join it, it doesnt let me join the server

 

[How do i give myself op?]

use console and do /op user

[When I try to install any plugin it says "Validation Error"?]

had the same problem and found a way
go to the market and buy the plugins u want. check out and go back to the server addons and now u can add the plugins

[Trying to join server but I just get sent to the lobby...]

when u do /join <servername> you start the server/join it depending if the server is on but if the server is offline you are starting it and you need to wait and it will send you to the server

 

[When I try to install any plugin it says "Validation Error"?]

also have this problem does anyone know how to fix?