21:21:40 [GRAVE] Could not pass event PlayerLoginEvent to EasyBan v3.0.3 B:22
org.bukkit.event.EventException
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:341)
        at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62)
        at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:477)
        at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:462)
        at net.minecraft.server.ServerConfigurationManagerAbstract.attemptLogin(ServerConfigurationManagerAbstract.java:268)
        at net.minecraft.server.NetLoginHandler.d(NetLoginHandler.java:123)
        at net.minecraft.server.NetLoginHandler.c(NetLoginHandler.java:45)
        at net.minecraft.server.DedicatedServerConnectionThread.a(DedicatedServerConnectionThread.java:44)
        at net.minecraft.server.DedicatedServerConnection.b(SourceFile:29)
        at net.minecraft.server.MinecraftServer.r(MinecraftServer.java:595)
        at net.minecraft.server.DedicatedServer.r(DedicatedServer.java:222)
        at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:493)
        at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:426)
        at net.minecraft.server.ThreadServerApplication.run(SourceFile:856)
Caused by: java.lang.NullPointerException
        at uk.org.whoami.easyban.datasource.YamlDataSource.addIpToHistory(YamlDataSource.java:55)
        at uk.org.whoami.easyban.listener.EasyBanPlayerListener.onPlayerLogin(EasyBanPlayerListener.java:55)
        at sun.reflect.GeneratedMethodAccessor204.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:597)
        at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:339)
        ... 13 more