I found some minor issues with config default values.
The default values contain '§' instead of '&' for coloring. The affected message is Purge: Wiped graves.

Also, the custom time value for old purges was previously not used. I fixed it, though I renamed it by 1 character.

Old line:
'Purge Command wipes graves older than x hours:': 31
New line:
Purge Command wipes graves older than x hours: 31

To use it you'll need to change the line, otherwise it won't recognize it. The value loaded will then be the default value of 31 hours.