[19:06:17] [Server thread/FATAL]: Error executing task
java.util.concurrent.ExecutionException: java.lang.ArrayIndexOutOfBoundsException: -1
    at java.util.concurrent.FutureTask.report(Unknown Source) ~[?:1.8.0_191]
    at java.util.concurrent.FutureTask.get(Unknown Source) ~[?:1.8.0_191]
    at net.minecraft.server.v1_13_R2.SystemUtils.a(SourceFile:200) [spigot-1.13.2.jar:git-Spigot-f09662d-be557e6]
    at net.minecraft.server.v1_13_R2.MinecraftServer.b(MinecraftServer.java:896) [spigot-1.13.2.jar:git-Spigot-f09662d-be557e6]
    at net.minecraft.server.v1_13_R2.DedicatedServer.b(DedicatedServer.java:417) [spigot-1.13.2.jar:git-Spigot-f09662d-be557e6]
    at net.minecraft.server.v1_13_R2.MinecraftServer.a(MinecraftServer.java:831) [spigot-1.13.2.jar:git-Spigot-f09662d-be557e6]
    at net.minecraft.server.v1_13_R2.MinecraftServer.run(MinecraftServer.java:729) [spigot-1.13.2.jar:git-Spigot-f09662d-be557e6]
    at java.lang.Thread.run(Unknown Source) [?:1.8.0_191]
Caused by: java.lang.ArrayIndexOutOfBoundsException: -1
    at java.util.ArrayList.elementData(Unknown Source) ~[?:1.8.0_191]
    at java.util.ArrayList.get(Unknown Source) ~[?:1.8.0_191]
    at net.minecraft.server.v1_13_R2.Container.getSlot(Container.java:108) ~[spigot-1.13.2.jar:git-Spigot-f09662d-be557e6]
    at net.minecraft.server.v1_13_R2.PlayerConnection.a(PlayerConnection.java:2027) ~[spigot-1.13.2.jar:git-Spigot-f09662d-be557e6]
    at net.minecraft.server.v1_13_R2.PacketPlayInWindowClick.a(SourceFile:33) ~[spigot-1.13.2.jar:git-Spigot-f09662d-be557e6]
    at net.minecraft.server.v1_13_R2.PacketPlayInWindowClick.a(SourceFile:10) ~[spigot-1.13.2.jar:git-Spigot-f09662d-be557e6]
    at net.minecraft.server.v1_13_R2.PlayerConnectionUtils.lambda$0(PlayerConnectionUtils.java:9) ~[spigot-1.13.2.jar:git-Spigot-f09662d-be557e6]
    at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) ~[?:1.8.0_191]
    at java.util.concurrent.FutureTask.run(Unknown Source) ~[?:1.8.0_191]
    at net.minecraft.server.v1_13_R2.SystemUtils.a(SourceFile:199) ~[spigot-1.13.2.jar:git-Spigot-f09662d-be557e6]
    ... 5 more