[00:20:50] [Server thread/ERROR]: Could not pass event PlayerJoinEvent to PingTab v1.3.1
org.bukkit.event.EventException
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:302) ~[craftbukkit.jar:git-Bukkit-62a2169]
	at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[craftbukkit.jar:git-Bukkit-62a2169]
	at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:501) [craftbukkit.jar:git-Bukkit-62a2169]
	at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:486) [craftbukkit.jar:git-Bukkit-62a2169]
	at net.minecraft.server.v1_8_R3.PlayerList.onPlayerJoin(PlayerList.java:282) [craftbukkit.jar:git-Bukkit-62a2169]
	at net.minecraft.server.v1_8_R3.PlayerList.a(PlayerList.java:142) [craftbukkit.jar:git-Bukkit-62a2169]
	at net.minecraft.server.v1_8_R3.LoginListener.b(LoginListener.java:115) [craftbukkit.jar:git-Bukkit-62a2169]
	at net.minecraft.server.v1_8_R3.LoginListener.c(LoginListener.java:53) [craftbukkit.jar:git-Bukkit-62a2169]
	at net.minecraft.server.v1_8_R3.NetworkManager.a(NetworkManager.java:222) [craftbukkit.jar:git-Bukkit-62a2169]
	at net.minecraft.server.v1_8_R3.ServerConnection.c(SourceFile:168) [craftbukkit.jar:git-Bukkit-62a2169]
	at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:745) [craftbukkit.jar:git-Bukkit-62a2169]
	at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:335) [craftbukkit.jar:git-Bukkit-62a2169]
	at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:629) [craftbukkit.jar:git-Bukkit-62a2169]
	at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:537) [craftbukkit.jar:git-Bukkit-62a2169]
	at java.lang.Thread.run(Unknown Source) [?:1.8.0_60]
Caused by: java.lang.NoClassDefFoundError: org/bukkit/craftbukkit/v1_7_R3/entity/CraftPlayer
	at br.net.hexafun.PingTab.PingTab.onJoin(PingTab.java:378) ~[?:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_60]
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_60]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_60]
	at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_60]
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:300) ~[craftbukkit.jar:git-Bukkit-62a2169]
	... 14 more
Caused by: java.lang.ClassNotFoundException: org.bukkit.craftbukkit.v1_7_R3.entity.CraftPlayer
	at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:67) ~[craftbukkit.jar:git-Bukkit-62a2169]
	at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:62) ~[craftbukkit.jar:git-Bukkit-62a2169]
	at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_60]
	at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.8.0_60]
	at br.net.hexafun.PingTab.PingTab.onJoin(PingTab.java:378) ~[?:?]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_60]
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_60]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_60]
	at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_60]
	at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:300) ~[craftbukkit.jar:git-Bukkit-62a2169]
	... 14 more
[00:20:50]