list index out of range

After successfully uploading around ~250 torrents, the script suddenly hit a roadblock.

```
Traceback (most recent call last):
  File "./redactedbetter", line 276, in <module>
    main()
  File "./redactedbetter", line 157, in main
    artist = group['group']['musicInfo']['artists'][0]['name']
IndexError: list index out of range
```
No further uploading can be done.