insert-ethers command not working on Linux Rocks frontend

After Rocks frontend being instal开发者_运维问答led, I tried adding a new node to the frontend using the following command

#insert-ethers

but I got this error:

'bash: insert-ethers: command not found" 

What can I do to solve this problem?

P.S: The server was installed by someone else so I`m guessing he maybe did not install all the necessary components.

---

You need to be root to use the rocks commands. Try su -