Crash DediZone

22.10 11:38:49 [Multicraft] Not restarting crashed server.
22.10 11:38:49 [Multicraft] Server stopped
22.10 11:38:49 [Multicraft] Looks like a crash, check the server console. Return value: 1
22.10 11:38:49 [Multicraft] Server shut down
22.10 11:38:49 [Server] INFO at cpw.mods.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.java:17)
22.10 11:38:49 [Server] INFO at cpw.mods.fml.relauncher.ServerLaunchWrapper.run(ServerLaunchWrapper.java:30)
22.10 11:38:49 [Server] INFO at java.lang.Class.forName(Class.java:270)
22.10 11:38:49 [Server] INFO at java.lang.Class.forName0(Native Method)
22.10 11:38:49 [Server] INFO at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
22.10 11:38:49 [Server] INFO at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
22.10 11:38:49 [Server] INFO at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
22.10 11:38:49 [Server] INFO at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
22.10 11:38:49 [Server] INFO at java.security.AccessController.doPrivileged(Native Method)
22.10 11:38:49 [Server] INFO at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
22.10 11:38:49 [Server] INFO at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
22.10 11:38:49 [Server] INFO You will need to add them to your server before FML and Forge will run successfully.java.lang.ClassNotFoundException: net.minecraft.launchwrapper.Launch
22.10 11:38:49 [Server] INFO We appear to be missing one or more essential library files.
22.10 11:38:49 [Multicraft] Loaded config for "Mod: FTB-DireWolf20-1.6.4"
22.10 11:38:49 [Multicraft] Starting server!
22.10 11:38:49 [Multicraft] Loading server properties
22.10 11:38:49 [Multicraft] Received start command