[14:26:19 ERROR]: [CraftMagicNumbers] Exception modifying ItemStack
java.lang.Throwable: com.mojang.brigadier.exceptions.CommandSyntaxException: Unknown item 'minecraft:' at position 0: <--[HERE]
        at org.bukkit.craftbukkit.util.CraftMagicNumbers.modifyItemStack(CraftMagicNumbers.java:297) ~[purpur-1.21.4.jar:1.21.4-2380-7399988]
        at acubelets-2.4.7.jar/me.davidml16.acubelets.utils.SkullCreator.itemWithBase64(SkullCreator.java:81) ~[acubelets-2.4.7.jar:?]
        at acubelets-2.4.7.jar/me.davidml16.acubelets.utils.SkullCreator.itemFromBase64(SkullCreator.java:69) ~[acubelets-2.4.7.jar:?]
        at acubelets-2.4.7.jar/me.davidml16.acubelets.handlers.CubeletTypesHandler.loadTypes(CubeletTypesHandler.java:215) ~[acubelets-2.4.7.jar:?]
        at acubelets-2.4.7.jar/me.davidml16.acubelets.handlers.PluginHandler.reloadAll(PluginHandler.java:56) ~[acubelets-2.4.7.jar:?]
        at acubelets-2.4.7.jar/me.davidml16.acubelets.commands.cubelets.subcommands.ExecuteReload.executeCommand(ExecuteReload.java:22) ~[acubelets-2.4.7.jar:?]
        at acubelets-2.4.7.jar/me.davidml16.acubelets.commands.cubelets.CoreCommand.execute(CoreCommand.java:72) ~[acubelets-2.4.7.jar:?]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:178) ~[purpur-api-1.21.4-R0.1-SNAPSHOT.jar:?]
        at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:1030) ~[purpur-1.21.4.jar:1.21.4-2380-7399988]
        at org.bukkit.craftbukkit.CraftServer.dispatchServerCommand(CraftServer.java:1015) ~[purpur-1.21.4.jar:1.21.4-2380-7399988]
        at net.minecraft.server.dedicated.DedicatedServer.handleConsoleInputs(DedicatedServer.java:523) ~[purpur-1.21.4.jar:1.21.4-2380-7399988]
        at net.minecraft.server.dedicated.DedicatedServer.tickConnection(DedicatedServer.java:473) ~[purpur-1.21.4.jar:1.21.4-2380-7399988]
        at net.minecraft.server.MinecraftServer.tickChildren(MinecraftServer.java:1785) ~[purpur-1.21.4.jar:1.21.4-2380-7399988]
        at net.minecraft.server.MinecraftServer.tickServer(MinecraftServer.java:1575) ~[purpur-1.21.4.jar:1.21.4-2380-7399988]
        at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1291) ~[purpur-1.21.4.jar:1.21.4-2380-7399988]
        at net.minecraft.server.MinecraftServer.lambda$spin$2(MinecraftServer.java:313) ~[purpur-1.21.4.jar:1.21.4-2380-7399988]
        at java.base/java.lang.Thread.run(Thread.java:1583) ~[?:?]
Caused by: com.mojang.brigadier.exceptions.CommandSyntaxException: Unknown item 'minecraft:' at position 0: <--[HERE]
[14:26:19 WARN]: java.lang.NoSuchMethodException: org.bukkit.craftbukkit.inventory.CraftMetaSkull.setProfile(com.mojang.authlib.GameProfile)
[14:26:19 WARN]:        at java.base/java.lang.Class.getDeclaredMethod(Class.java:2848)
[14:26:19 WARN]:        at io.papermc.reflectionrewriter.runtime.AbstractDefaultRulesReflectionProxy.getDeclaredMethod(AbstractDefaultRulesReflectionProxy.java:95)
[14:26:19 WARN]:        at io.papermc.paper.pluginremap.reflect.PaperReflectionHolder.getDeclaredMethod(Unknown Source)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//io.github.bananapuncher714.nbteditor.NBTEditor$ReflectionTarget.fetchDeclaredMethod(NBTEditor.java:1766)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//io.github.bananapuncher714.nbteditor.NBTEditor.<clinit>(NBTEditor.java:100)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//me.davidml16.acubelets.handlers.CubeletRewardHandler.loadReward(CubeletRewardHandler.java:75)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//me.davidml16.acubelets.handlers.CubeletRewardHandler.loadRewards(CubeletRewardHandler.java:37)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//me.davidml16.acubelets.handlers.PluginHandler.reloadAll(PluginHandler.java:58)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//me.davidml16.acubelets.commands.cubelets.subcommands.ExecuteReload.executeCommand(ExecuteReload.java:22)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//me.davidml16.acubelets.commands.cubelets.CoreCommand.execute(CoreCommand.java:72)
[14:26:19 WARN]:        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:178)
[14:26:19 WARN]:        at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:1030)
[14:26:19 WARN]:        at org.bukkit.craftbukkit.CraftServer.dispatchServerCommand(CraftServer.java:1015)
[14:26:19 WARN]:        at net.minecraft.server.dedicated.DedicatedServer.handleConsoleInputs(DedicatedServer.java:523)
[14:26:19 WARN]:        at net.minecraft.server.dedicated.DedicatedServer.tickConnection(DedicatedServer.java:473)
[14:26:19 WARN]:        at net.minecraft.server.MinecraftServer.tickChildren(MinecraftServer.java:1785)
[14:26:19 WARN]:        at net.minecraft.server.MinecraftServer.tickServer(MinecraftServer.java:1575)
[14:26:19 WARN]:        at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1291)
[14:26:19 WARN]:        at net.minecraft.server.MinecraftServer.lambda$spin$2(MinecraftServer.java:313)
[14:26:19 WARN]:        at java.base/java.lang.Thread.run(Thread.java:1583)
[14:26:19 WARN]: java.lang.IllegalArgumentException: argument type mismatch
[14:26:19 WARN]:        at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:107)
[14:26:19 WARN]:        at java.base/java.lang.reflect.Method.invoke(Method.java:580)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//io.github.bananapuncher714.nbteditor.NBTEditor.setItemTag(NBTEditor.java:532)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//io.github.bananapuncher714.nbteditor.NBTEditor.set(NBTEditor.java:1210)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//me.davidml16.acubelets.handlers.CubeletRewardHandler.loadReward(CubeletRewardHandler.java:75)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//me.davidml16.acubelets.handlers.CubeletRewardHandler.loadRewards(CubeletRewardHandler.java:37)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//me.davidml16.acubelets.handlers.PluginHandler.reloadAll(PluginHandler.java:58)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//me.davidml16.acubelets.commands.cubelets.subcommands.ExecuteReload.executeCommand(ExecuteReload.java:22)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//me.davidml16.acubelets.commands.cubelets.CoreCommand.execute(CoreCommand.java:72)
[14:26:19 WARN]:        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:178)
[14:26:19 WARN]:        at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:1030)
[14:26:19 WARN]:        at org.bukkit.craftbukkit.CraftServer.dispatchServerCommand(CraftServer.java:1015)
[14:26:19 WARN]:        at net.minecraft.server.dedicated.DedicatedServer.handleConsoleInputs(DedicatedServer.java:523)
[14:26:19 WARN]:        at net.minecraft.server.dedicated.DedicatedServer.tickConnection(DedicatedServer.java:473)
[14:26:19 WARN]:        at net.minecraft.server.MinecraftServer.tickChildren(MinecraftServer.java:1785)
[14:26:19 WARN]:        at net.minecraft.server.MinecraftServer.tickServer(MinecraftServer.java:1575)
[14:26:19 WARN]:        at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1291)
[14:26:19 WARN]:        at net.minecraft.server.MinecraftServer.lambda$spin$2(MinecraftServer.java:313)
[14:26:19 WARN]:        at java.base/java.lang.Thread.run(Thread.java:1583)
[14:26:19 WARN]: java.lang.IllegalArgumentException: argument type mismatch
[14:26:19 WARN]:        at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:107)
[14:26:19 WARN]:        at java.base/java.lang.reflect.Method.invoke(Method.java:580)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//io.github.bananapuncher714.nbteditor.NBTEditor.setItemTag(NBTEditor.java:532)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//io.github.bananapuncher714.nbteditor.NBTEditor.set(NBTEditor.java:1210)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//me.davidml16.acubelets.handlers.CubeletRewardHandler.loadReward(CubeletRewardHandler.java:75)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//me.davidml16.acubelets.handlers.CubeletRewardHandler.loadRewards(CubeletRewardHandler.java:37)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//me.davidml16.acubelets.handlers.PluginHandler.reloadAll(PluginHandler.java:58)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//me.davidml16.acubelets.commands.cubelets.subcommands.ExecuteReload.executeCommand(ExecuteReload.java:22)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//me.davidml16.acubelets.commands.cubelets.CoreCommand.execute(CoreCommand.java:72)
[14:26:19 WARN]:        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:178)
[14:26:19 WARN]:        at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:1030)
[14:26:19 WARN]:        at org.bukkit.craftbukkit.CraftServer.dispatchServerCommand(CraftServer.java:1015)
[14:26:19 WARN]:        at net.minecraft.server.dedicated.DedicatedServer.handleConsoleInputs(DedicatedServer.java:523)
[14:26:19 WARN]:        at net.minecraft.server.dedicated.DedicatedServer.tickConnection(DedicatedServer.java:473)
[14:26:19 WARN]:        at net.minecraft.server.MinecraftServer.tickChildren(MinecraftServer.java:1785)
[14:26:19 WARN]:        at net.minecraft.server.MinecraftServer.tickServer(MinecraftServer.java:1575)
[14:26:19 WARN]:        at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1291)
[14:26:19 WARN]:        at net.minecraft.server.MinecraftServer.lambda$spin$2(MinecraftServer.java:313)
[14:26:19 WARN]:        at java.base/java.lang.Thread.run(Thread.java:1583)
[14:26:19 WARN]: java.lang.IllegalArgumentException: argument type mismatch
[14:26:19 WARN]:        at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:107)
[14:26:19 WARN]:        at java.base/java.lang.reflect.Method.invoke(Method.java:580)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//io.github.bananapuncher714.nbteditor.NBTEditor.setItemTag(NBTEditor.java:532)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//io.github.bananapuncher714.nbteditor.NBTEditor.set(NBTEditor.java:1210)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//me.davidml16.acubelets.handlers.CubeletRewardHandler.loadReward(CubeletRewardHandler.java:75)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//me.davidml16.acubelets.handlers.CubeletRewardHandler.loadRewards(CubeletRewardHandler.java:37)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//me.davidml16.acubelets.handlers.PluginHandler.reloadAll(PluginHandler.java:58)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//me.davidml16.acubelets.commands.cubelets.subcommands.ExecuteReload.executeCommand(ExecuteReload.java:22)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//me.davidml16.acubelets.commands.cubelets.CoreCommand.execute(CoreCommand.java:72)
[14:26:19 WARN]:        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:178)
[14:26:19 WARN]:        at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:1030)
[14:26:19 WARN]:        at org.bukkit.craftbukkit.CraftServer.dispatchServerCommand(CraftServer.java:1015)
[14:26:19 WARN]:        at net.minecraft.server.dedicated.DedicatedServer.handleConsoleInputs(DedicatedServer.java:523)
[14:26:19 WARN]:        at net.minecraft.server.dedicated.DedicatedServer.tickConnection(DedicatedServer.java:473)
[14:26:19 WARN]:        at net.minecraft.server.MinecraftServer.tickChildren(MinecraftServer.java:1785)
[14:26:19 WARN]:        at net.minecraft.server.MinecraftServer.tickServer(MinecraftServer.java:1575)
[14:26:19 WARN]:        at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1291)
[14:26:19 WARN]:        at net.minecraft.server.MinecraftServer.lambda$spin$2(MinecraftServer.java:313)
[14:26:19 WARN]:        at java.base/java.lang.Thread.run(Thread.java:1583)
[14:26:19 WARN]: java.lang.IllegalArgumentException: argument type mismatch
[14:26:19 WARN]:        at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:107)
[14:26:19 WARN]:        at java.base/java.lang.reflect.Method.invoke(Method.java:580)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//io.github.bananapuncher714.nbteditor.NBTEditor.setItemTag(NBTEditor.java:532)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//io.github.bananapuncher714.nbteditor.NBTEditor.set(NBTEditor.java:1210)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//me.davidml16.acubelets.handlers.CubeletRewardHandler.loadReward(CubeletRewardHandler.java:75)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//me.davidml16.acubelets.handlers.CubeletRewardHandler.loadRewards(CubeletRewardHandler.java:37)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//me.davidml16.acubelets.handlers.PluginHandler.reloadAll(PluginHandler.java:58)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//me.davidml16.acubelets.commands.cubelets.subcommands.ExecuteReload.executeCommand(ExecuteReload.java:22)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//me.davidml16.acubelets.commands.cubelets.CoreCommand.execute(CoreCommand.java:72)
[14:26:19 WARN]:        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:178)
[14:26:19 WARN]:        at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:1030)
[14:26:19 WARN]:        at org.bukkit.craftbukkit.CraftServer.dispatchServerCommand(CraftServer.java:1015)
[14:26:19 WARN]:        at net.minecraft.server.dedicated.DedicatedServer.handleConsoleInputs(DedicatedServer.java:523)
[14:26:19 WARN]:        at net.minecraft.server.dedicated.DedicatedServer.tickConnection(DedicatedServer.java:473)
[14:26:19 WARN]:        at net.minecraft.server.MinecraftServer.tickChildren(MinecraftServer.java:1785)
[14:26:19 WARN]:        at net.minecraft.server.MinecraftServer.tickServer(MinecraftServer.java:1575)
[14:26:19 WARN]:        at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1291)
[14:26:19 WARN]:        at net.minecraft.server.MinecraftServer.lambda$spin$2(MinecraftServer.java:313)
[14:26:19 WARN]:        at java.base/java.lang.Thread.run(Thread.java:1583)
[14:26:19 WARN]: java.lang.IllegalArgumentException: argument type mismatch
[14:26:19 WARN]:        at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:107)
[14:26:19 WARN]:        at java.base/java.lang.reflect.Method.invoke(Method.java:580)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//io.github.bananapuncher714.nbteditor.NBTEditor.setItemTag(NBTEditor.java:532)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//io.github.bananapuncher714.nbteditor.NBTEditor.set(NBTEditor.java:1210)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//me.davidml16.acubelets.handlers.CubeletRewardHandler.loadReward(CubeletRewardHandler.java:75)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//me.davidml16.acubelets.handlers.CubeletRewardHandler.loadRewards(CubeletRewardHandler.java:37)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//me.davidml16.acubelets.handlers.PluginHandler.reloadAll(PluginHandler.java:58)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//me.davidml16.acubelets.commands.cubelets.subcommands.ExecuteReload.executeCommand(ExecuteReload.java:22)
[14:26:19 WARN]:        at acubelets-2.4.7.jar//me.davidml16.acubelets.commands.cubelets.CoreCommand.execute(CoreCommand.java:72)
[14:26:19 WARN]:        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:178)
[14:26:19 WARN]:        at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:1030)
[14:26:19 WARN]:        at org.bukkit.craftbukkit.CraftServer.dispatchServerCommand(CraftServer.java:1015)
[14:26:19 WARN]:        at net.minecraft.server.dedicated.DedicatedServer.handleConsoleInputs(DedicatedServer.java:523)
[14:26:19 WARN]:        at net.minecraft.server.dedicated.DedicatedServer.tickConnection(DedicatedServer.java:473)
[14:26:19 WARN]:        at net.minecraft.server.MinecraftServer.tickChildren(MinecraftServer.java:1785)
[14:26:19 WARN]:        at net.minecraft.server.MinecraftServer.tickServer(MinecraftServer.java:1575)
[14:26:19 WARN]:        at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1291)
[14:26:19 WARN]:        at net.minecraft.server.MinecraftServer.lambda$spin$2(MinecraftServer.java:313)
[14:26:19 WARN]:        at java.base/java.lang.Thread.run(Thread.java:1583)
[14:26:19 WARN]: Unexpected exception while parsing console command "acubelets:cubelets reload"
org.bukkit.command.CommandException: Unhandled exception executing 'acubelets:cubelets reload' in me.davidml16.acubelets.commands.cubelets.CoreCommand(cubelets)
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:188) ~[purpur-api-1.21.4-R0.1-SNAPSHOT.jar:?]
        at org.bukkit.craftbukkit.CraftServer.dispatchCommand(CraftServer.java:1030) ~[purpur-1.21.4.jar:1.21.4-2380-7399988]
        at org.bukkit.craftbukkit.CraftServer.dispatchServerCommand(CraftServer.java:1015) ~[purpur-1.21.4.jar:1.21.4-2380-7399988]
        at net.minecraft.server.dedicated.DedicatedServer.handleConsoleInputs(DedicatedServer.java:523) ~[purpur-1.21.4.jar:1.21.4-2380-7399988]
        at net.minecraft.server.dedicated.DedicatedServer.tickConnection(DedicatedServer.java:473) ~[purpur-1.21.4.jar:1.21.4-2380-7399988]
        at net.minecraft.server.MinecraftServer.tickChildren(MinecraftServer.java:1785) ~[purpur-1.21.4.jar:1.21.4-2380-7399988]
        at net.minecraft.server.MinecraftServer.tickServer(MinecraftServer.java:1575) ~[purpur-1.21.4.jar:1.21.4-2380-7399988]
        at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1291) ~[purpur-1.21.4.jar:1.21.4-2380-7399988]
        at net.minecraft.server.MinecraftServer.lambda$spin$2(MinecraftServer.java:313) ~[purpur-1.21.4.jar:1.21.4-2380-7399988]
        at java.base/java.lang.Thread.run(Thread.java:1583) ~[?:?]
Caused by: java.lang.NullPointerException: Cannot serialize a null item
        at java.base/java.util.Objects.requireNonNull(Objects.java:259) ~[?:?]
        at acubelets-2.4.7.jar/com.cryptomorin.xseries.XItemStack.serialize(XItemStack.java:214) ~[acubelets-2.4.7.jar:?]
        at acubelets-2.4.7.jar/com.cryptomorin.xseries.XItemStack.serialize(XItemStack.java:199) ~[acubelets-2.4.7.jar:?]
        at acubelets-2.4.7.jar/me.davidml16.acubelets.objects.CubeletType.saveType(CubeletType.java:253) ~[acubelets-2.4.7.jar:?]
        at acubelets-2.4.7.jar/me.davidml16.acubelets.handlers.CubeletRewardHandler.loadReward(CubeletRewardHandler.java:129) ~[acubelets-2.4.7.jar:?]
        at acubelets-2.4.7.jar/me.davidml16.acubelets.handlers.CubeletRewardHandler.loadRewards(CubeletRewardHandler.java:37) ~[acubelets-2.4.7.jar:?]
        at acubelets-2.4.7.jar/me.davidml16.acubelets.handlers.PluginHandler.reloadAll(PluginHandler.java:58) ~[acubelets-2.4.7.jar:?]
        at acubelets-2.4.7.jar/me.davidml16.acubelets.commands.cubelets.subcommands.ExecuteReload.executeCommand(ExecuteReload.java:22) ~[acubelets-2.4.7.jar:?]
        at acubelets-2.4.7.jar/me.davidml16.acubelets.commands.cubelets.CoreCommand.execute(CoreCommand.java:72) ~[acubelets-2.4.7.jar:?]
        at org.bukkit.command.SimpleCommandMap.dispatch(SimpleCommandMap.java:178) ~[purpur-api-1.21.4-R0.1-SNAPSHOT.jar:?]
        ... 9 more
[14:26:35 WARN]: [com.artillexstudios.axtrade.libs.axapi.metrics.AxMetrics] Regenerated server uuid, because it was already in use!