This occurs when interacting with a sign what has a colored name (i think)

4:20:49 PM [16:20:48 ERROR]: Could not pass event PlayerInteractEvent to Essentials vTeamCity
4:20:49 PM org.bukkit.event.EventException
4:20:49 PM at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:305) ~[spigot-1.8.jar:git-Spigot-52c130f-6dfcbc6]
4:20:49 PM at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:62) ~[spigot-1.8.jar:git-Spigot-52c130f-6dfcbc6]
4:20:49 PM at org.bukkit.plugin.SimplePluginManager.fireEvent(SimplePluginManager.java:502) [spigot-1.8.jar:git-Spigot-52c130f-6dfcbc6]
4:20:49 PM at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:487) [spigot-1.8.jar:git-Spigot-52c130f-6dfcbc6]
4:20:49 PM at org.bukkit.craftbukkit.v1_8_R1.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:226) [spigot-1.8.jar:git-Spigot-52c130f-6dfcbc6]
4:20:49 PM at org.bukkit.craftbukkit.v1_8_R1.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:193) [spigot-1.8.jar:git-Spigot-52c130f-6dfcbc6]
4:20:49 PM at org.bukkit.craftbukkit.v1_8_R1.event.CraftEventFactory.callPlayerInteractEvent(CraftEventFactory.java:189) [spigot-1.8.jar:git-Spigot-52c130f-6dfcbc6]
4:20:49 PM at net.minecraft.server.v1_8_R1.PlayerConnection.a(PlayerConnection.java:682) [spigot-1.8.jar:git-Spigot-52c130f-6dfcbc6]
4:20:49 PM at net.minecraft.server.v1_8_R1.PacketPlayInBlockPlace.a(PacketPlayInBlockPlace.java:50) [spigot-1.8.jar:git-Spigot-52c130f-6dfcbc6]
4:20:49 PM at net.minecraft.server.v1_8_R1.PacketPlayInBlockPlace.a(PacketPlayInBlockPlace.java:80) [spigot-1.8.jar:git-Spigot-52c130f-6dfcbc6]
4:20:49 PM at net.minecraft.server.v1_8_R1.PacketHandleTask.run(SourceFile:13) [spigot-1.8.jar:git-Spigot-52c130f-6dfcbc6]
4:20:49 PM at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [?:1.8.0_45]
4:20:49 PM at java.util.concurrent.FutureTask.run(Unknown Source) [?:1.8.0_45]
4:20:49 PM at net.minecraft.server.v1_8_R1.MinecraftServer.z(MinecraftServer.java:683) [spigot-1.8.jar:git-Spigot-52c130f-6dfcbc6]
4:20:49 PM at net.minecraft.server.v1_8_R1.DedicatedServer.z(DedicatedServer.java:316) [spigot-1.8.jar:git-Spigot-52c130f-6dfcbc6]
4:20:49 PM at net.minecraft.server.v1_8_R1.MinecraftServer.y(MinecraftServer.java:623) [spigot-1.8.jar:git-Spigot-52c130f-6dfcbc6]
4:20:49 PM at net.minecraft.server.v1_8_R1.MinecraftServer.run(MinecraftServer.java:526) [spigot-1.8.jar:git-Spigot-52c130f-6dfcbc6]
4:20:49 PM at java.lang.Thread.run(Unknown Source) [?:1.8.0_45]
4:20:49 PM Caused by: java.lang.NoSuchMethodError: org.bukkit.entity.Player.getTargetBlock(Ljava/util/Set;I)Lorg/bukkit/block/Block;
4:20:49 PM at com.earth2me.essentials.signs.SignPlayerListener.onSignPlayerInteract(SignPlayerListener.java:47) ~[?:?]
4:20:49 PM at sun.reflect.GeneratedMethodAccessor39.invoke(Unknown Source) ~[?:?]
4:20:49 PM at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_45]
4:20:49 PM at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_45]
4:20:49 PM at org.bukkit.plugin.java.JavaPluginLoader$1.execute(JavaPluginLoader.java:301) ~[spigot-1.8.jar:git-Spigot-52c130f-6dfcbc6]
4:20:49 PM ... 17 more