java.lang.IndexOutOfBoundsException: Index -1 out of bounds for length 0
	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:248) ~[?:?]
	at java.util.Objects.checkIndex(Objects.java:372) ~[?:?]
	at java.util.ArrayList.get(ArrayList.java:459) ~[?:?]
	at net.minecraft.inventory.container.Container.func_75139_a(ContainerMixin.java:150) ~[?:?]
	at com.envyful.better.dex.rewards.shade.envy.api.forge.gui.ForgeGui$ForgeGuiContainer.func_75139_a(ForgeGui.java:169) ~[betterdexrewards:?]
	at net.minecraft.network.play.ServerPlayNetHandler.func_147351_a(ServerPlayNetHandlerMixin.java:2749) ~[?:?]
	at net.minecraft.network.play.client.CClickWindowPacket.func_148833_a(CClickWindowPacket.java:34) ~[?:?]
	at net.minecraft.network.play.client.CClickWindowPacket.func_148833_a(CClickWindowPacket.java:12) ~[?:?]
	at net.minecraft.network.PacketThreadUtil.md762ecb$lambda$checkThreadAndEnqueue$0$0(PacketThreadUtilMixin.java:536) ~[?:?]
	at net.minecraft.util.concurrent.TickDelayedTask.run(SourceFile:18) ~[?:?]
	at net.minecraft.util.concurrent.ThreadTaskExecutor.func_213166_h(SourceFile:144) ~[?:?]
	at net.minecraft.util.concurrent.RecursiveEventLoop.func_213166_h(SourceFile:23) ~[?:?]
	at net.minecraft.server.MinecraftServer.func_213166_h(MinecraftServerMixin.java:734) ~[?:?]
	at net.minecraft.server.MinecraftServer.func_213166_h(MinecraftServerMixin.java:159) ~[?:?]
	at net.minecraft.util.concurrent.ThreadTaskExecutor.func_213168_p(SourceFile:118) ~[?:?]
	at net.minecraft.server.MinecraftServer.func_213205_aW(MinecraftServerMixin.java:717) ~[?:?]
	at net.minecraft.server.MinecraftServer.func_213168_p(MinecraftServerMixin.java:711) ~[?:?]
	at net.minecraft.util.concurrent.ThreadTaskExecutor.func_213160_bf(SourceFile:103) ~[?:?]
	at net.minecraft.server.MinecraftServer.func_213202_o(MinecraftServerMixin.java:696) ~[?:?]
	at net.minecraft.server.MinecraftServer.func_240802_v_(MinecraftServerMixin.java:1921) ~[?:?]
	at net.minecraft.server.MinecraftServer.func_240783_a_(MinecraftServerMixin.java:232) ~[?:?]
	at java.lang.Thread.run(Thread.java:829) [?:?]