erroras

[09:16:10] [Server thread/ERROR]: Could not load 'plugins/MyCommands-1.11.2-01.jar' in folder 'plugins'
org.bukkit.plugin.InvalidDescriptionException: Invalid plugin.yml
	at org.bukkit.plugin.java.JavaPluginLoader.getPluginDescription(JavaPluginLoader.java:152) ~[spigot.jar:git-Spigot-6de2fbc-80dd971]
	at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:133) [spigot.jar:git-Spigot-6de2fbc-80dd971]
	at org.bukkit.craftbukkit.v1_11_R1.CraftServer.loadPlugins(CraftServer.java:301) [spigot.jar:git-Spigot-6de2fbc-80dd971]
	at org.bukkit.craftbukkit.v1_11_R1.CraftServer.reload(CraftServer.java:748) [spigot.jar:git-Spigot-6de2fbc-80dd971]
	at org.bukkit.Bukkit.reload(Bukkit.java:540) [spigot.jar:git-Spigot-6de2fbc-80dd971]
	at org.bukkit.command.defaults.ReloadCommand.execute(ReloadCommand.java:25) [spigot.jar:git-Spigot-6de2fbc-80dd971]
	at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:141) [spigot.jar:git-Spigot-6de2fbc-80dd971]
	at org.bukkit.craftbukkit.v1_11_R1.CraftServer.dispatchCommand(CraftServer.java:650) [spigot.jar:git-Spigot-6de2fbc-80dd971]
	at net.minecraft.server.v1_11_R1.PlayerConnection.handleCommand(PlayerConnection.java:1344) [spigot.jar:git-Spigot-6de2fbc-80dd971]
	at net.minecraft.server.v1_11_R1.PlayerConnection.a(PlayerConnection.java:1179) [spigot.jar:git-Spigot-6de2fbc-80dd971]
	at net.minecraft.server.v1_11_R1.PacketPlayInChat.a(PacketPlayInChat.java:45) [spigot.jar:git-Spigot-6de2fbc-80dd971]
	at net.minecraft.server.v1_11_R1.PacketPlayInChat.a(PacketPlayInChat.java:1) [spigot.jar:git-Spigot-6de2fbc-80dd971]
	at net.minecraft.server.v1_11_R1.PlayerConnectionUtils$1.run(SourceFile:13) [spigot.jar:git-Spigot-6de2fbc-80dd971]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) [?:1.6.0_38]
	at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334) [?:1.6.0_38]
	at java.util.concurrent.FutureTask.run(FutureTask.java:166) [?:1.6.0_38]
	at net.minecraft.server.v1_11_R1.SystemUtils.a(SourceFile:46) [spigot.jar:git-Spigot-6de2fbc-80dd971]
	at net.minecraft.server.v1_11_R1.MinecraftServer.D(MinecraftServer.java:739) [spigot.jar:git-Spigot-6de2fbc-80dd971]
	at net.minecraft.server.v1_11_R1.DedicatedServer.D(DedicatedServer.java:399) [spigot.jar:git-Spigot-6de2fbc-80dd971]
	at net.minecraft.server.v1_11_R1.MinecraftServer.C(MinecraftServer.java:675) [spigot.jar:git-Spigot-6de2fbc-80dd971]
	at net.minecraft.server.v1_11_R1.MinecraftServer.run(MinecraftServer.java:574) [spigot.jar:git-Spigot-6de2fbc-80dd971]
	at java.lang.Thread.run(Thread.java:701) [?:1.6.0_38]
Caused by: java.io.FileNotFoundException: Jar does not contain plugin.yml
	... 22 more