[16:30:27 WARN]: Unexpected exception while parsing console command "cap eraackk"
org.bukkit.command.CommandException: Unhandled exception executing command 'cap' in plugin Captchas v1.2.4
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:47) ~[patched_1.15.2.jar:git-Paper-112]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:159) ~[patched_1.15.2.jar:git-Paper-112]
        at org.bukkit.craftbukkit.v1_15_R1.CraftServer.dispatchCommand(CraftServer.java:742) ~[patched_1.15.2.jar:git-Paper-112]
        at org.bukkit.craftbukkit.v1_15_R1.CraftServer.dispatchServerCommand(CraftServer.java:704) ~[patched_1.15.2.jar:git-Paper-112]
        at net.minecraft.server.v1_15_R1.DedicatedServer.handleCommandQueue(DedicatedServer.java:469) ~[patched_1.15.2.jar:git-Paper-112]
        at net.minecraft.server.v1_15_R1.DedicatedServer.b(DedicatedServer.java:431) ~[patched_1.15.2.jar:git-Paper-112]
        at net.minecraft.server.v1_15_R1.MinecraftServer.a(MinecraftServer.java:1112) ~[patched_1.15.2.jar:git-Paper-112]
        at net.minecraft.server.v1_15_R1.MinecraftServer.run(MinecraftServer.java:934) ~[patched_1.15.2.jar:git-Paper-112]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_241]
Caused by: java.lang.ArrayIndexOutOfBoundsException: -1
        at java.util.Arrays$ArrayList.set(Unknown Source) ~[?:1.8.0_241]
        at net.minecraft.server.v1_15_R1.NonNullList.set(SourceFile:53) ~[patched_1.15.2.jar:git-Paper-112]
        at org.bukkit.craftbukkit.v1_15_R1.inventory.CraftInventoryCustom$MinecraftInventory.setItem(CraftInventoryCustom.java:108) ~[patched_1.15.2.jar:git-Paper-112]
        at org.bukkit.craftbukkit.v1_15_R1.inventory.CraftInventory.setItem(CraftInventory.java:99) ~[patched_1.15.2.jar:git-Paper-112]
        at me.Yukun.Captchas.GUI.openCaptcha(GUI.java:148) ~[?:?]
        at me.Yukun.Captchas.Handlers.DelayHandler.openCaptcha(DelayHandler.java:44) ~[?:?]
        at me.Yukun.Captchas.Handlers.CommandHandler.onCommand(CommandHandler.java:64) ~[?:?]
        at org.bukkit.command.PluginCommand.execute(PluginCommand.java:45) ~[patched_1.15.2.jar:git-Paper-112]
        ... 8 more