Protocolib

[01:35:22] [Server thread/ERROR]: Could not load 'plugins/ProtocolLib.jar' in folder 'plugins'
org.bukkit.plugin.InvalidPluginException: java.lang.UnsupportedClassVersionError: com/comphenix/protocol/ProtocolLib : Unsupported major.minor version 52.0
	at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:131) ~[minecraft_server.jar:git-Bukkit-75a8885]
	at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:328) ~[minecraft_server.jar:git-Bukkit-75a8885]
	at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:251) [minecraft_server.jar:git-Bukkit-75a8885]
	at org.bukkit.craftbukkit.v1_10_R1.CraftServer.loadPlugins(CraftServer.java:295) [minecraft_server.jar:git-Bukkit-75a8885]
	at org.bukkit.craftbukkit.v1_10_R1.CraftServer.<init>(CraftServer.java:257) [minecraft_server.jar:git-Bukkit-75a8885]
	at net.minecraft.server.v1_10_R1.PlayerList.<init>(PlayerList.java:70) [minecraft_server.jar:git-Bukkit-75a8885]
	at net.minecraft.server.v1_10_R1.DedicatedPlayerList.<init>(SourceFile:14) [minecraft_server.jar:git-Bukkit-75a8885]
	at net.minecraft.server.v1_10_R1.DedicatedServer.init(DedicatedServer.java:184) [minecraft_server.jar:git-Bukkit-75a8885]
	at net.minecraft.server.v1_10_R1.MinecraftServer.run(MinecraftServer.java:514) [minecraft_server.jar:git-Bukkit-75a8885]
	at java.lang.Thread.run(Thread.java:745) [?:1.7.0_131]
Caused by: java.lang.UnsupportedClassVersionError: com/comphenix/protocol/ProtocolLib : Unsupported major.minor version 52.0
	at java.lang.ClassLoader.defineClass1(Native Method) ~[?:1.7.0_131]
	at java.lang.ClassLoader.defineClass(ClassLoader.java:803) ~[?:1.7.0_131]
	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) ~[?:1.7.0_131]
	at java.net.URLClassLoader.defineClass(URLClassLoader.java:442) ~[?:1.7.0_131]
	at java.net.URLClassLoader.access$100(URLClassLoader.java:64) ~[?:1.7.0_131]
	at java.net.URLClassLoader$1.run(URLClassLoader.java:354) ~[?:1.7.0_131]
	at java.net.URLClassLoader$1.run(URLClassLoader.java:348) ~[?:1.7.0_131]
	at java.security.AccessController.doPrivileged(Native Method) ~[?:1.7.0_131]
	at java.net.URLClassLoader.findClass(URLClassLoader.java:347) ~[?:1.7.0_131]
	at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:77) ~[minecraft_server.jar:git-Bukkit-75a8885]
	at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:62) ~[minecraft_server.jar:git-Bukkit-75a8885]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:425) ~[?:1.7.0_131]
	at java.lang.ClassLoader.loadClass(ClassLoader.java:358) ~[?:1.7.0_131]
	at java.lang.Class.forName0(Native Method) ~[?:1.7.0_131]
	at java.lang.Class.forName(Class.java:278) ~[?:1.7.0_131]
	at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:40) ~[minecraft_server.jar:git-Bukkit-75a8885]
	at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:127) ~[minecraft_server.jar:git-Bukkit-75a8885]
	... 9 more