You do not have permission to run the ‘Microsoft Dynamics NAV Server' system. Contact your system administrator to have your permissions changed

If you get this error when trying to start the RTC, it normally means it's something wrong with the licenses.
Ensure that the license you are using has permission to run RTC and service tier (correct granule). Granule needed for RTC:

• 9,000 Role Centers
• 9,100 Dynamics NAV Server

Ensure also that the license is uploaded.

1. Start classic client
2. Open the database used by RTC
3. Click Tools->License information
4. Click upload and pick the license file to be uploaded to SQL server

Ensure also that the license is saved in the database.

1. Start classic client
2. Open the database used by RTC
3. Click File->Database->Alter
4. Click on integration tab
5. Put a check mark on "Save license in database"