[17:26:57] [Server thread/ERROR]: Could not load 'plugins\ChatMumble.jar' in folder 'plugins'
org.bukkit.plugin.InvalidDescriptionException: Invalid plugin.yml
	at org.bukkit.plugin.java.JavaPluginLoader.getPluginDescription(JavaPluginLoader.java:152) ~[craftbukkit-1.8.3.jar:git-Bukkit-ba32592]
	at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:133) [craftbukkit-1.8.3.jar:git-Bukkit-ba32592]
	at org.bukkit.craftbukkit.v1_8_R2.CraftServer.loadPlugins(CraftServer.java:288) [craftbukkit-1.8.3.jar:git-Bukkit-ba32592]
	at org.bukkit.craftbukkit.v1_8_R2.CraftServer.<init>(CraftServer.java:250) [craftbukkit-1.8.3.jar:git-Bukkit-ba32592]
	at net.minecraft.server.v1_8_R2.PlayerList.<init>(PlayerList.java:69) [craftbukkit-1.8.3.jar:git-Bukkit-ba32592]
	at net.minecraft.server.v1_8_R2.DedicatedPlayerList.<init>(SourceFile:14) [craftbukkit-1.8.3.jar:git-Bukkit-ba32592]
	at net.minecraft.server.v1_8_R2.DedicatedServer.init(DedicatedServer.java:180) [craftbukkit-1.8.3.jar:git-Bukkit-ba32592]
	at net.minecraft.server.v1_8_R2.MinecraftServer.run(MinecraftServer.java:501) [craftbukkit-1.8.3.jar:git-Bukkit-ba32592]
	at java.lang.Thread.run(Unknown Source) [?:1.8.0_60]
Caused by: java.io.FileNotFoundException: Jar does not contain plugin.yml
	... 9 more