A Code 4 error pops up when your device / browser doesn't have the necessary drivers to play the video. There are two possibilities you can try before you would want to try watching on a different device:
- Clearing the cache / history on your current browser
- Switch to a different browser (We recommend Google Chrome).
If neither of the above fixes the issue then it is likely the device you are on just cannot play the video and you should try a different device. LG phones / tablets are especially susceptible to this issue.