After installing uipath from community edition getting error You do not have permission to update Orchestrator Settings. Please contact your company administrator for help

Please refer this if you are still facing Community Studio vs Enterprise Studio issue.

Unable to connect the assistant is due to account privileges. Most probably the studio might have installed with Admin Privileges and your account doesn’t have enough privileges. You might need to open the Assistant with Admin and connect it. After getting licensed, close the Assistant and open normally with your account.