Domino 4.x & 5.x
You are unable to create a new project in Domino 4.x or 5.x.
In Domino 4.x when you attempt to create a new project you may receive a failure that notes:
At this version you may note that the 'New Project' is greyed out and will not allow you to attempt to create a new project.
In both of these cases your user is likely just missing the Practitioner role. This role allows a user to create projects and execute workloads in Domino.
Note that additional information is available here on Domino Roles.
A Domino administrator can change your user's Role to Practitioner through the user administrator dashboard.
Note that from Domino Support we are able to make this change if we have access to your deployment, but because the Practitioner role counts against your licenses used we will need explicit authorization from a local administrator or someone who can approve the change.