Sonar Installation problem

Information about Installation

Using embedded database Derbis

Problem :

I run bin/windows-x86-32/StartSonar.bat and then click http://localhost:9000

On clicking this, I get the following error:

We're sorry, but something went wrong.
Please try back in a few minutes and contact support if the problem persists.
<%= link_to "Go back to the homepage", home_path %>

Do you know what to do with that error message.