Error while integrating Test manager with UiPath Studio

I am trying to integrate Test Manager v 20.10.3 with Studio Pro 2020.10.4. My orchestrator version is v 20.20.4.
When I am trying to access test manager settings from Studio pro, i am facing the below error. can you please throw some light on what might be causing the error?

It is probably the same problem as in this topic: Test Manager and StudioPro