title: Intermittent 'Error 403 - This web app is stopped'
body: <p>A multi-instance Standard Azure website calls itself (via ASP Web API) to use the razor engine to render an email template. Since yesterday (site has been live 2 years) the api is is occasionally (1 in 20) returning</p>
  
  <blockquote>
    <p>Error 403 - This web app is stopped.</p>
    
    <p>The web app you have attempted to reach is currently stopped and does
    not accept any requests. Please try to reload the page or visit it
    again soon.</p>
    
    <p>If you are the Administrator of this web app, please visit the Azure
    Portal to check why the app is stopped.</p>
  </blockquote>
  
  <p>It should return a nice 'Thank you for your order' message.</p>
  
  <p>Looking in the (mostly baffling to me) Kudo interface there is no indication that the website actually stopped/restarted. If it did I think I would at least see the WebJobs firing up in the logs? (not sure about this actually). The IIS Logs don't show any break in the service.</p>
  
  <p>I'm not sure what I should be looking to do to resolve this issue?</p>
  
  <p>I'll try a Slot Swap and report back...</p>
  
  <p>edit: Deployed new version to stage, swapped. Error persists. This pattern (hit api for rendered html, then email it) is used several times but it's only this one url that has this issue. Odd.</p>