Server gets this error:

[18:43:40 WARN]: Could not pass incoming plugin message to ScoreboardStats v0.9.13 java.lang.IllegalStateException: java.io.EOFException at com.google.common.io.ByteStreams$ByteArrayDataInputStream.readUTF(ByteStreams.java:449) ~[overcraft.jar:git-Spigot-7d78b81-70bc70b] at com.github.games647.scoreboardstats.variables.defaults.BungeeCordVariables.onPluginMessageReceived(BungeeCordVariables.java:63) ~[?:?] at org.bukkit.plugin.messaging.StandardMessenger.dispatchIncomingMessage(StandardMessenger.java:427) [overcraft.jar:git-Spigot-7d78b81-70bc70b] at net.minecraft.server.v1_11_R1.PlayerConnection.a(PlayerConnection.java:2489) [overcraft.jar:git-Spigot-7d78b81-70bc70b] at net.minecraft.server.v1_11_R1.PacketPlayInCustomPayload.a(SourceFile:58) [overcraft.jar:git-Spigot-7d78b81-70bc70b] at net.minecraft.server.v1_11_R1.PacketPlayInCustomPayload.a(SourceFile:8) [overcraft.jar:git-Spigot-7d78b81-70bc70b] at net.minecraft.server.v1_11_R1.PlayerConnectionUtils$1.run(SourceFile:13) [overcraft.jar:git-Spigot-7d78b81-70bc70b] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [?:1.8.0_66] at java.util.concurrent.FutureTask.run(FutureTask.java:266) [?:1.8.0_66] at net.minecraft.server.v1_11_R1.SystemUtils.a(SourceFile:46) [overcraft.jar:git-Spigot-7d78b81-70bc70b] at net.minecraft.server.v1_11_R1.MinecraftServer.D(MinecraftServer.java:739) [overcraft.jar:git-Spigot-7d78b81-70bc70b] at net.minecraft.server.v1_11_R1.DedicatedServer.D(DedicatedServer.java:399) [overcraft.jar:git-Spigot-7d78b81-70bc70b] at net.minecraft.server.v1_11_R1.MinecraftServer.C(MinecraftServer.java:675) [overcraft.jar:git-Spigot-7d78b81-70bc70b] at net.minecraft.server.v1_11_R1.MinecraftServer.run(MinecraftServer.java:574) [overcraft.jar:git-Spigot-7d78b81-70bc70b] at java.lang.Thread.run(Thread.java:745) [?:1.8.0_66] Caused by: java.io.EOFException at java.io.DataInputStream.readUnsignedShort(DataInputStream.java:340) ~[?:1.8.0_66] at java.io.DataInputStream.readUTF(DataInputStream.java:589) ~[?:1.8.0_66] at java.io.DataInputStream.readUTF(DataInputStream.java:564) ~[?:1.8.0_66] at com.google.common.io.ByteStreams$ByteArrayDataInputStream.readUTF(ByteStreams.java:447) ~[overcraft.jar:git-Spigot-7d78b81-70bc70b] ... 14 more