So basically I installed the plugin TreasureHunt and then after it installed Family Jewels stopped working, it was working before I know that it has NetServerHandler in it so I uninstalled it and uninstalled Family Jewles and then reinstalled Family Jewels and shut down the server and brought it back up and it doesn't work at all anymore and I have no clue what to do. I have 62 other plugins but none of them have NetServerHandler so I don't know what to do. If anyone knows how to fix it, I would appreciate the help. I have version 1.2.5-R4.0 of craft bukkit. Thanks.

What other plugins are installed?

Like 60 other plugins but, it was working fine before I installed the TreasureHunt Plugin.

Doesn't look like TreasureHunt is open source, so there's not much I can do in helping you debug this issue.