Issue: You need to use the "sudo" command or need the Administrator password on the server.
Solution: If you are on a Managed or Pay-As-You-Go server plan you do not have admin credentials.
You can contact our Support Help Desk to assist you to install software or run commands that require admin credentials or "sudo". Please note some software/commands will not work on the Managed and Pay-As-You-Go servers and require upgrading to a Dedicated Server. Please contact us to see if the software/command you need will work.
Alternatively you can upgrade to a Dedicated Server plan. You will have root admin privileges with sudo rights and will be able to install all the software you need.