[20:37:10] [Server thread/ERROR]: Could not load 'plugins/uSkyBlock.jar' in folder 'plugins'
org.bukkit.plugin.InvalidPluginException: java.lang.NoClassDefFoundError: com/sk89q/worldedit/MaxChangedBlocksException
	at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:184) ~[Craftbukkit-1.7.2-beta-UTF8.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
	at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:308) ~[Craftbukkit-1.7.2-beta-UTF8.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
	at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:231) [Craftbukkit-1.7.2-beta-UTF8.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
	at org.bukkit.craftbukkit.v1_7_R1.CraftServer.loadPlugins(CraftServer.java:255) [Craftbukkit-1.7.2-beta-UTF8.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
	at org.bukkit.craftbukkit.v1_7_R1.CraftServer.<init>(CraftServer.java:233) [Craftbukkit-1.7.2-beta-UTF8.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
	at net.minecraft.server.v1_7_R1.PlayerList.<init>(PlayerList.java:63) [Craftbukkit-1.7.2-beta-UTF8.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
	at net.minecraft.server.v1_7_R1.DedicatedPlayerList.<init>(SourceFile:14) [Craftbukkit-1.7.2-beta-UTF8.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
	at net.minecraft.server.v1_7_R1.DedicatedServer.init(DedicatedServer.java:126) [Craftbukkit-1.7.2-beta-UTF8.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
	at net.minecraft.server.v1_7_R1.MinecraftServer.run(MinecraftServer.java:424) [Craftbukkit-1.7.2-beta-UTF8.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
	at net.minecraft.server.v1_7_R1.ThreadServerApplication.run(SourceFile:617) [Craftbukkit-1.7.2-beta-UTF8.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
Caused by: java.lang.NoClassDefFoundError: com/sk89q/worldedit/MaxChangedBlocksException
	at java.lang.Class.forName0(Native Method) ~[?:1.7.0_25]
	at java.lang.Class.forName(Class.java:270) ~[?:1.7.0_25]
	at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:173) ~[Craftbukkit-1.7.2-beta-UTF8.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
	... 9 more
Caused by: java.lang.ClassNotFoundException: com.sk89q.worldedit.MaxChangedBlocksException
	at java.net.URLClassLoader$1.run(URLClassLoader.java:366) ~[?:1.7.0_25]
	at java.net.URLClassLoader$1.run(URLClassLoader.java:355) ~[?:1.7.0_25]
	at java.security.AccessController.doPrivileged(Native Method) ~[?:1.7.0_25]
	at java.net.URLClassLoader.findClass(URLClassLoader.java:354) ~[?:1.7.0_25]
	at org.bukkit.plugin.java.PluginClassLoader.findClass0(PluginClassLoader.java:80) ~[Craftbukkit-1.7.2-beta-UTF8.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
	at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:53) ~[Craftbukkit-1.7.2-beta-UTF8.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.7.0_25]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.7.0_25]
	at java.lang.Class.forName0(Native Method) ~[?:1.7.0_25]
	at java.lang.Class.forName(Class.java:270) ~[?:1.7.0_25]
	at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:173) ~[Craftbukkit-1.7.2-beta-UTF8.jar:git-Bukkit-1.7.2-R0.2-b2974jnks]
	... 9 more