2013-03-07 20:09:06 [SEVERE] java.lang.UnsupportedClassVersionError: MCPCPlusXNmsBlock_147 : Unsupported major.minor version 51.0
2013-03-07 20:09:06 [SEVERE] 	at java.lang.ClassLoader.defineClass1(Native Method)
2013-03-07 20:09:06 [SEVERE] 	at java.lang.ClassLoader.defineClass(ClassLoader.java:634)
2013-03-07 20:09:06 [SEVERE] 	at java.lang.ClassLoader.defineClass(ClassLoader.java:480)
2013-03-07 20:09:06 [SEVERE] 	at com.sk89q.worldedit.bukkit.BukkitWorld$NmsBlockClassLoader.loadClass(BukkitWorld.java:228)
2013-03-07 20:09:06 [SEVERE] 	at com.sk89q.worldedit.bukkit.BukkitWorld.<init>(BukkitWorld.java:146)
2013-03-07 20:09:06 [SEVERE] 	at com.sk89q.worldedit.bukkit.BukkitUtil.getLocalWorld(BukkitUtil.java:50)
2013-03-07 20:09:06 [SEVERE] 	at com.sk89q.worldguard.protection.flags.LocationFlag.unmarshal(LocationFlag.java:117)
2013-03-07 20:09:06 [SEVERE] 	at com.sk89q.worldguard.protection.flags.LocationFlag.unmarshal(LocationFlag.java:40)
2013-03-07 20:09:06 [SEVERE] 	at com.sk89q.worldguard.protection.databases.YAMLDatabase.setFlag(YAMLDatabase.java:179)
2013-03-07 20:09:06 [SEVERE] 	at com.sk89q.worldguard.protection.databases.YAMLDatabase.setFlags(YAMLDatabase.java:166)
2013-03-07 20:09:06 [SEVERE] 	at com.sk89q.worldguard.protection.databases.YAMLDatabase.load(YAMLDatabase.java:117)
2013-03-07 20:09:06 [SEVERE] 	at com.sk89q.worldguard.protection.databases.AbstractProtectionDatabase.load(AbstractProtectionDatabase.java:32)
2013-03-07 20:09:06 [SEVERE] 	at com.sk89q.worldguard.protection.managers.RegionManager.load(RegionManager.java:60)
2013-03-07 20:09:06 [SEVERE] 	at com.sk89q.worldguard.protection.GlobalRegionManager.create(GlobalRegionManager.java:160)
2013-03-07 20:09:06 [SEVERE] 	at com.sk89q.worldguard.protection.GlobalRegionManager.load(GlobalRegionManager.java:130)
2013-03-07 20:09:06 [SEVERE] 	at com.sk89q.worldguard.protection.GlobalRegionManager.preload(GlobalRegionManager.java:194)
2013-03-07 20:09:06 [SEVERE] 	at com.sk89q.worldguard.bukkit.WorldGuardPlugin.onEnable(WorldGuardPlugin.java:149)
2013-03-07 20:09:06 [SEVERE] 	at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:217)
2013-03-07 20:09:06 [SEVERE] 	at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:457)
2013-03-07 20:09:06 [SEVERE] 	at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:381)
2013-03-07 20:09:06 [SEVERE] 	at org.bukkit.craftbukkit.v1_4_R1.CraftServer.loadPlugin(CraftServer.java:282)
2013-03-07 20:09:06 [SEVERE] 	at org.bukkit.craftbukkit.v1_4_R1.CraftServer.enablePlugins(CraftServer.java:264)
2013-03-07 20:09:06 [SEVERE] 	at net.minecraft.server.v1_4_R1.MinecraftServer.j(MinecraftServer.java:321)
2013-03-07 20:09:06 [SEVERE] 	at net.minecraft.server.v1_4_R1.MinecraftServer.e(MinecraftServer.java:300)
2013-03-07 20:09:06 [SEVERE] 	at net.minecraft.server.v1_4_R1.MinecraftServer.a(MinecraftServer.java:259)
2013-03-07 20:09:06 [SEVERE] 	at net.minecraft.server.v1_4_R1.DedicatedServer.init(DedicatedServer.java:149)
2013-03-07 20:09:06 [SEVERE] 	at net.minecraft.server.v1_4_R1.MinecraftServer.run(MinecraftServer.java:399)
2013-03-07 20:09:06 [SEVERE] 	at net.minecraft.server.v1_4_R1.ThreadServerApplication.run(SourceFile:849)