Erro panda

[HanielCota]

[21:53:48 FATAL]: Error executing task
java.util.concurrent.ExecutionException: java.lang.IndexOutOfBoundsException: Index 49 out of bounds for length 45
at java.util.concurrent.FutureTask.report(FutureTask.java:122) ~[?:?]
at java.util.concurrent.FutureTask.get(FutureTask.java:191) ~[?:?]
at net.minecraft.server.v1_8_R3.SystemUtils.a(SystemUtils.java:12) ~[patched_1.8.8.jar:git-PandaSpigot-83]
at net.minecraft.server.v1_8_R3.MinecraftServer.B(MinecraftServer.java:880) ~[patched_1.8.8.jar:git-PandaSpigot-83]
at net.minecraft.server.v1_8_R3.DedicatedServer.B(DedicatedServer.java:412) ~[patched_1.8.8.jar:git-PandaSpigot-83]
at net.minecraft.server.v1_8_R3.MinecraftServer.A(MinecraftServer.java:814) ~[patched_1.8.8.jar:git-PandaSpigot-83]
at net.minecraft.server.v1_8_R3.MinecraftServer.run(MinecraftServer.java:647) ~[patched_1.8.8.jar:git-PandaSpigot-83]
at net.minecraft.server.v1_8_R3.MinecraftServer.lambda$spin$0(MinecraftServer.java:133) ~[patched_1.8.8.jar:git-PandaSpigot-83]
at java.lang.Thread.run(Thread.java:833) [?:?]
Caused by: java.lang.IndexOutOfBoundsException: Index 49 out of bounds for length 45
at jdk.internal.util.Preconditions.outOfBounds(Preconditions.java:64) ~[?:?]
at jdk.internal.util.Preconditions.outOfBoundsCheckIndex(Preconditions.java:70) ~[?:?]
at jdk.internal.util.Preconditions.checkIndex(Preconditions.java:266) ~[?:?]
at java.util.Objects.checkIndex(Objects.java:359) ~[?:?]
at java.util.ArrayList.get(ArrayList.java:427) ~[?:?]
at net.minecraft.server.v1_8_R3.Container.getSlot(Container.java:109) ~[patched_1.8.8.jar:git-PandaSpigot-83]
at net.minecraft.server.v1_8_R3.PlayerConnection.a(PlayerConnection.java:1732) ~[patched_1.8.8.jar:git-PandaSpigot-83]
at net.minecraft.server.v1_8_R3.PacketPlayInWindowClick.a(PacketPlayInWindowClick.java:17) ~[patched_1.8.8.jar:git-PandaSpigot-83]
at net.minecraft.server.v1_8_R3.PacketPlayInWindowClick.a(PacketPlayInWindowClick.java:5) ~[patched_1.8.8.jar:git-PandaSpigot-83]
at net.minecraft.server.v1_8_R3.PlayerConnectionUtils$1.run(PlayerConnectionUtils.java:9) ~[patched_1.8.8.jar:git-PandaSpigot-83]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539) ~[?:?]
at java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[?:?]
at net.minecraft.server.v1_8_R3.SystemUtils.a(SystemUtils.java:11) ~[patched_1.8.8.jar:git-PandaSpigot-83]
... 6 more