You launch the ControlUp Console and get a black screen.
After you wait the console opens empty without your configuration.
In the license you have specific number of admins allowed. Look in the license, under - Quantity
During the installation you defined AD Group for Authorized Users - who can login to ControlUp Console.
The number of users in the group is more than the number in the license file. You might have nested a group in the ControlUp AD Group, and in that group you have more users than defined in the license.
Please make sure in the ControlUp Authorized AD Group, you define the same number of users defined in the license file under Quantity (of ControlUp admins).