title: check 500 internal server error in production mode in rails 3.2
body: <p>I have my app in production mode in my linode account and I get in one page a 500 internal server error the message:</p>
  
  <pre><code>We're sorry, but something went wrong.
  </code></pre>
  
  <p>However in my development environment works fine this page.</p>
  
  <p>How can I debug this error? </p>
  
  <p>How can I see the error origin in my <strong>production mode?</strong></p>
  
  <p>I want that rails show errors in production mode.</p>
  
  <p>How can I do it?</p>
  
  <p>Thank you!</p>