title: How can I debug my Rails application which encountered an internal server error?
body: <p>I am using Rails 4.1 and Ruby 2.1.1 on Ubuntu.</p>
  
  <p>My application is running just fine on the local development environment. When I moved everything to the production environment server, and tried the application URL, I got the following:</p>
  
  <pre><code>Internal Server Error
  
  The server encountered an internal error or misconfiguration and was unable to complete your request.
  </code></pre>
  
  <p>The log file (production.log) has in it something about the migrations, but nothing else. </p>
  
  <p>Where do I get started trying to figure out what this is about?</p>