You would have received an automated email directing you to our Client Area after your VPS was setup.
You need to login to the Client Area. Once there, open the details of your service and then change the root password to a very strong one. It must be a combination of Upper and Lower Case Alphabets, Numbers and if possible, special characters.
Kindly note that a VPS with a weak password can be compromised. Compromised Virtual Private Servers would be suspended without prior notice!
You are welcome to generate a strong password using https://strongpasswordgenerator.com/