Images deployed by the OrionVM Panel have no initial root password, and hence you are not able to log into it immediately via SSH. 

You are able to log into the Instance using the following credentials:

Username: Root

Password: (blank)

Please change the root password upon login to a password of your choice. You can do this by running the "passwd" command at the bash prompt and following the prompts. Ensure that you keep this password in a safe place.