Hi please can someone help me i keep getting errors
31.05 07:45:58 [Multicraft] Not restarting crashed server.
31.05 07:45:58 [Multicraft] Server stopped
31.05 07:45:58 [Multicraft] Looks like a crash, check the server console. Return value: 1
31.05 07:45:58 [Multicraft] Server shut down
31.05 07:45:58 [Server] INFO at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.java:12)
31.05 07:45:58 [Server] INFO at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.run(ServerLaunchWrapper.java:25)
31.05 07:45:58 [Server] INFO at java.lang.Class.forName(Unknown Source)
31.05 07:45:58 [Server] INFO at java.lang.Class.forName0(Native Method)
31.05 07:45:58 [Server] INFO at java.lang.ClassLoader.loadClass(Unknown Source)
31.05 07:45:58 [Server] INFO at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
31.05 07:45:58 [Server] INFO at java.lang.ClassLoader.loadClass(Unknown Source)
31.05 07:45:58 [Server] INFO at java.net.URLClassLoader.findClass(Unknown Source)
31.05 07:45:58 [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
31.05 07:45:58 [Server] INFO We appear to be missing one or more essential library files.
31.05 07:45:58 [Multicraft] Loaded config for “Default”
31.05 07:45:58 [Multicraft] Starting server!
31.05 07:45:58 [Multicraft] Loading server properties
31.05 07:45:58 [Multicraft] Received start command