Red “No Hotlinking” error

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It happens because the page with the gallery is on a different host than the one where the thumbnails are coming from.

  1. Go to WordPress dashboard > Plugins > Editor and select Justified Image Grid (or use an FTP client).
  2. Find timthumb-config.php
  3. Add the host of your website, or use the wildcards to set it up according to your needs:

While possible and easier, it's not recommended to disable the hotlinking protection altogether:

This troubleshooting fix was posted in Frontend no-show on June 8, 2015