Task: Want to create new Company in Dynamics NAV 2013 R2
Issue: "The server "DynamicsNAV71" was unable to process the request. Close the application and start it again."
Solution:
Solution is so simple for this issue:
1. Close RTC(Role Tailored Client)
2. Open Microsoft Dynamics NAV 2013 R2 Development Environment

3. Open your database:
4. Click on Tools Menu -> then select Build Server Application Objects

5. Click on Yes Button

6. You see following message on the screen just click on OK

7. That's it, Now you can able to create new company from RTC, be sure you have dbOwner permission on your database.
See:

Happy Searching..........