You can take head out of slimefun guide

[EagL3-GIT]

❗ Checklist

• I am using the official english version of Slimefun and did not modify the jar.
• I am using an up to date "DEV" (not "RC") version of Slimefun.
• I am aware that issues related to Slimefun addons need to be reported on their bug trackers and not here.
• I searched for similar open issues and could not find an existing bug report on this.

📍 Description

You can bug this head into your inventory:

Also, there is some error because of it:

[01:37:42 ERROR]: Could not pass event InventoryClickEvent to Slimefun vDev - 1118
java.lang.IllegalArgumentException: Illegal base64 character 2e
at java.util.Base64$Decoder.decode0(Base64.java:848) ~[?:?]
at java.util.Base64$Decoder.decode(Base64.java:566) ~[?:?]
at java.util.Base64$Decoder.decode(Base64.java:589) ~[?:?]
at io.github.thebusybiscuit.slimefun4.libraries.dough.skins.PlayerSkin.fromBase64(PlayerSkin.java:53) ~[Slimefun4-Dev.jar:?]
at io.github.thebusybiscuit.slimefun4.libraries.dough.skins.PlayerSkin.fromBase64(PlayerSkin.java:68) ~[Slimefun4-Dev.jar:?]
at io.github.thebusybiscuit.slimefun4.utils.SlimefunUtils.getCustomHead(SlimefunUtils.java:245) ~[Slimefun4-Dev.jar:?]
at io.github.thebusybiscuit.slimefun4.core.guide.options.ContributorsMenu.getContributorHead(ContributorsMenu.java:90) ~[Slimefun4-Dev.jar:?]
at io.github.thebusybiscuit.slimefun4.core.guide.options.ContributorsMenu.open(ContributorsMenu.java:54) ~[Slimefun4-Dev.jar:?]
at io.github.thebusybiscuit.slimefun4.core.guide.options.SlimefunGuideSettings.lambda$addHeader$2(SlimefunGuideSettings.java:109) ~[Slimefun4-Dev.jar:?]
at me.mrCookieSlime.CSCoreLibPlugin.general.Inventory.MenuListener.onClick(MenuListener.java:56) ~[Slimefun4-Dev.jar:?]
at com.destroystokyo.paper.event.executor.asm.generated.GeneratedEventExecutor353.execute(Unknown Source) ~[?:?]
at org.bukkit.plugin.EventExecutor$2.execute(EventExecutor.java:77) ~[paper-api-1.20.2-R0.1-SNAPSHOT.jar:?]
at co.aikar.timings.TimedEventExecutor.execute(TimedEventExecutor.java:77) ~[paper-api-1.20.2-R0.1-SNAPSHOT.jar:git-Paper-318]
at org.bukkit.plugin.RegisteredListener.callEvent(RegisteredListener.java:70) ~[paper-api-1.20.2-R0.1-SNAPSHOT.jar:?]
at io.papermc.paper.plugin.manager.PaperEventManager.callEvent(PaperEventManager.java:54) ~[paper-1.20.2.jar:git-Paper-318]
at io.papermc.paper.plugin.manager.PaperPluginManagerImpl.callEvent(PaperPluginManagerImpl.java:126) ~[paper-1.20.2.jar:git-Paper-318]
at org.bukkit.plugin.SimplePluginManager.callEvent(SimplePluginManager.java:615) ~[paper-api-1.20.2-R0.1-SNAPSHOT.jar:?]
at net.minecraft.server.network.ServerGamePacketListenerImpl.handleContainerClick(ServerGamePacketListenerImpl.java:3108) ~[?:?]
at net.minecraft.network.protocol.game.ServerboundContainerClickPacket.handle(ServerboundContainerClickPacket.java:58) ~[?:?]
at net.minecraft.network.protocol.game.ServerboundContainerClickPacket.handle(ServerboundContainerClickPacket.java:23) ~[?:?]
at net.minecraft.network.protocol.PacketUtils.lambda$ensureRunningOnSameThread$0(PacketUtils.java:53) ~[?:?]
at net.minecraft.server.TickTask.run(TickTask.java:18) ~[paper-1.20.2.jar:git-Paper-318]
at net.minecraft.util.thread.BlockableEventLoop.doRunTask(BlockableEventLoop.java:153) ~[?:?]
at net.minecraft.util.thread.ReentrantBlockableEventLoop.doRunTask(ReentrantBlockableEventLoop.java:24) ~[?:?]
at net.minecraft.server.MinecraftServer.doRunTask(MinecraftServer.java:1324) ~[paper-1.20.2.jar:git-Paper-318]
at net.minecraft.server.MinecraftServer.d(MinecraftServer.java:193) ~[paper-1.20.2.jar:git-Paper-318]
at net.minecraft.util.thread.BlockableEventLoop.pollTask(BlockableEventLoop.java:126) ~[?:?]
at net.minecraft.server.MinecraftServer.pollTaskInternal(MinecraftServer.java:1301) ~[paper-1.20.2.jar:git-Paper-318]
at net.minecraft.server.MinecraftServer.pollTask(MinecraftServer.java:1294) ~[paper-1.20.2.jar:git-Paper-318]
at net.minecraft.util.thread.BlockableEventLoop.managedBlock(BlockableEventLoop.java:136) ~[?:?]
at net.minecraft.server.MinecraftServer.waitUntilNextTick(MinecraftServer.java:1272) ~[paper-1.20.2.jar:git-Paper-318]
at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1160) ~[paper-1.20.2.jar:git-Paper-318]
at net.minecraft.server.MinecraftServer.lambda$spin$0(MinecraftServer.java:315) ~[paper-1.20.2.jar:git-Paper-318]
at java.lang.Thread.run(Thread.java:833) ~[?:?]

📑 Reproduction Steps

1. Take slimefun book
2. Open it with shift click
3. Take shown head and after some tries you can have it in your inventory

💡 Expected Behavior

It should not happen.

📷 Screenshots / Videos

No response

📜 Server Log

No response

📂 /error-reports/ folder

No response

💻 Server Software

Paper

🎮 Minecraft Version

1.20.x

⭐ Slimefun version

Paper git-Paper-318 (MC: 1.20.2)
Slimefun Dev - 1118
Metrics-Module #29
Java 17

Installed Addons: (11)
Networks vDEV - 50 (git 3de3c9d6)
InfinityExpansion vDEV - 144 (git 9da37202)
AureliumSkills vBeta 1.3.23
ShopGUIPlus v1.93.0
LiteXpansion vMODIFIED
aquacore v1.4-SNAPSHOT
Residence v5.1.4.1
CMI v9.6.9.3
FluffyMachines vDEV - 132 (git ccf029ba)
ItemsAdder v3.6.2d-beta-2
HeadLimiter vUNOFFICIAL

🧭 Other plugins

No response