Bukkit

I'm aware of this issue, that the server crashes and working on fixing it, but NEED YOUR HELP!
http://dev.bukkit.org/server-mods/silkspawners/tickets/8-silk-spawners-server-crash
You could help, describe the error the best you can & upload a world where this issue occurs!

Please use this link, the file linked here contains a config error! https://dl.dropbox.com/u/26476995/SilkSpawners_ALPHA.jar

Changes since 2.0.2:

• Complete rewrite
  
• Added new entities to config
  
• Fixed XP duping
  
• Fixed glowing of spawners (removed legacy method)
  
• Changed /spawner command -> Changes spawner in hand, too
  
• Added /egg command -> get a free egg or change an existing one
  
• Output of entity ID on holding/clicking a spawner
  
• New messages (localization will follow)
  
• Added command line support for giving an egg/spawner to a player (e.g /spawner bat xGhOsTkiLLeRx)

TO SPAWN THE WITHER YOU NEED TO USE THE NAME WITHERBOSS

http://dev.bukkit.org/server-mods/silkspawners/tickets/8-silk-spawners-server-crash