These error messages occur when information relating to a video cannot be accessed. The most common cause of this problem is a firewall or proxy server blocking the request. To prevent the videos from being blocked, you’ll need to whitelist the following URLs in your firewall settings:
*.vzaar.com
*.kuonamaoni.com
Please be aware that with the majority of domestic internet configurations, these changes should not be necessary. Only implement them if you’re receiving a pnf18 or ikm20 error.