title: Magento Admin Helper_Data not found
body: <p>I've installed an extension by BrandAmmo named ProNav. I went to clear the cache and it gave me this error in the admin,</p>
  
  <pre><code>Fatal error: Class **Brandammo_Pronav_Helper_Data' not found in 
  /home/content/r/e/d/redr1225/html/app/Mage.php on line 516**
  </code></pre>
  
  <p>Any idea what I need to do?</p>