LR controller 11.52 error message while opening. Error code: 5

Hello helpdesk, I'm getting below error message whule opening a Loadrunner controller 11.52. Could anyone please advice how to get this fix ? 

Error message: 

The controller could not initialize successfully. Error code: 5. If running under TErminal Sessions make sure the "Create global objects" privilege is assigned to the user account.

Attached screenshot. 

Thank you.