Get queues items: Operation returned an invalid status code 'InternalServerError

hi everyone, i try get queues items from orchestrator but i have this problem, some one can help me?

Get queue items : Operation returned an invalid status code 'InternalServerError’

have this:

Are you connected to Orchestrator and have you created this Queue?

Please check whether your Orchestrator server is started or not?

yes Thanks, the problem was roles inside the Orchestrator