EasyATM Glitch

[21:53:44] [Server thread/ERROR]: Could not load 'plugins\EasyATM.jar' in folder 'plugins'
org.bukkit.plugin.InvalidPluginException: org.bukkit.plugin.IllegalPluginAccessException: Plugin attempted to register menu.nisovin.IconMenu@240b7499 while not enabled
	at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:133) ~[craftbukkit.jar:git-Bukkit-9a17f01]
	at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:328) ~[craftbukkit.jar:git-Bukkit-9a17f01]
	at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:251) [craftbukkit.jar:git-Bukkit-9a17f01]
	at org.bukkit.craftbukkit.v1_8_R3.CraftServer.loadPlugins(CraftServer.java:289) [craftbukkit.jar:git-Bukkit-9a17f01]
	at org.bukkit.craftbukkit.v1_8_R3.CraftServer.<init>(CraftServer.java:251) [craftbukkit.jar:git-Bukkit-9a17f01]
	at net.minecraft.server.v1_8_R3.PlayerList.<init>(PlayerList.java:69) [craftbukkit.jar:git-Bukkit-9a17f01]
	at net.minecraft.server.v1_8_R3.DedicatedPlayerList.<init>(SourceFile:14) [craftbukkit.jar:git-Bukkit-9a17f01]
	at net.minecraft.server.v1_8_R3.DedicatedServer.init(DedicatedServer.java:179) [craftbukkit.jar:git-Bukkit-9a17f01]
	at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:503) [craftbukkit.jar:git-Bukkit-9a17f01]
	at java.lang.Thread.run(Unknown Source) [?:1.8.0_60]
Caused by: org.bukkit.plugin.IllegalPluginAccessException: Plugin attempted to register menu.nisovin.IconMenu@240b7499 while not enabled
	at org.bukkit.plugin.SimplePluginManager.registerEvents(SimplePluginManager.java:523) ~[craftbukkit.jar:git-Bukkit-9a17f01]
	at menu.nisovin.IconMenu.<init>(IconMenu.java:35) ~[?:?]
	at com.goldblockstudios.masterdoctor.Main.<init>(Main.java:35) ~[?:?]
	at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.8.0_60]
	at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) ~[?:1.8.0_60]
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) ~[?:1.8.0_60]
	at java.lang.reflect.Constructor.newInstance(Unknown Source) ~[?:1.8.0_60]
	at java.lang.Class.newInstance(Unknown Source) ~[?:1.8.0_60]
	at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:52) ~[craftbukkit.jar:git-Bukkit-9a17f01]
	at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:129) ~[craftbukkit.jar:git-Bukkit-9a17f01]
	... 9 more