I get a crash when creating a katana, as soon as I hover my mouse over the weapon.

This is the error I get:
`---- Minecraft Crash Report ----

WARNING: coremods are present:
ForgelinPlugin (Forgelin-1.8.3.jar)
RandomPatches (randompatches-1.12.2-1.18.1.1.jar)
SplashAnimationCoremod (SplashAnimation-0.2.1.jar)
Inventory Tweaks Coremod (InventoryTweaks-1.63.jar)
PhosphorFMLLoadingPlugin (phosphor-1.12.2-0.2.6+build50-universal.jar)
Do not report to Forge! (If you haven't disabled the FoamFix coremod, try disabling it in the config! Note that this bit of text will still appear.) (foamfix-0.10.5-1.12.2.jar)
LoadingPlugin (ResourceLoader-MC1.12.1-1.5.3.jar)
IELoadingPlugin (ImmersiveEngineering-core-0.12-91.jar)
CoreMod (Aroma1997Core-1.12.2-2.0.0.2.jar)
CTMCorePlugin (CTM-MC1.12.2-0.3.3.22.jar)
CorePlugin (SmoothFont-mc1.12.2-2.1.1.jar)
Contact their authors BEFORE contacting forge

// You should try our sister game, Minceraft!

Time: 12/20/20 8:12 PM
Description: Rendering screen

java.lang.NullPointerException: Rendering screen
at net.minecraft.item.ItemStack.func_82840_a(ItemStack.java:881)
at net.minecraft.client.gui.GuiScreen.func_191927_a(GuiScreen.java:143)
at net.minecraft.client.gui.GuiScreen.func_146285_a(GuiScreen.java:137)
at net.minecraft.client.gui.inventory.GuiContainer.func_191948_b(GuiContainer.java:175)
at slimeknights.mantle.client.gui.GuiMultiModule.func_73863_a(GuiMultiModule.java:175)
at net.minecraftforge.client.ForgeHooksClient.drawScreen(ForgeHooksClient.java:396)
at net.minecraft.client.renderer.EntityRenderer.func_181560_a(EntityRenderer.java:1124)
at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:1119)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:398)
at net.minecraft.client.main.Main.main(SourceFile:123)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)`