title: Refile Production Error Rails
body: <p>In dev my rails app works just fine.</p>
  
  <p>In production instead there is just no image, it's uploaded to the server but it just won't show up. I'm using the default backend.</p>
  
  <p>When accessing the image url directly all I see is "error". :(</p>
  
  <p>Hope somebody could give me a hint.</p>