Minecraft fails to load

Description: Mod loading error has occurred

java.lang.Exception: Mod Loading has failed

A detailed walkthrough of the error, its code path and all known details is as follows:

-- Head --
Thread: Render thread
Stacktrace:
at net.minecraft.util.ResourceLocation.(ResourceLocation.java:33) ~[?:?] {re:mixin,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B,pl:mixin:APP:ftblibrary-common.mixins.json:ResourceLocationMixin,pl:mixin:APP:ferritecore.mrl.mixin.json:ResourceLocationAccess,pl:mixin:A}
-- MOD untamedwilds --
Details:
Mod File: untamedwilds-1.16.5-1.0.1.jar
Failure message: Untamed Wilds (untamedwilds) has failed to load correctly
net.minecraft.util.ResourceLocationException: Non [a-z0-9/.-] character in path of location: untamedwilds:egg_tarantula_black_and_whıte
Mod Version: 1.0.0
Mod Issue URL: https://github.com/RayTrace082/untamedwilds/issues
Exception message: net.minecraft.util.ResourceLocationException: Non [a-z0-9/.-] character in path of location: untamedwilds:egg_tarantula_black_and_whıte
Stacktrace:
at net.minecraft.util.ResourceLocation.(ResourceLocation.java:33) ~[?:?] {re:mixin,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B,pl:mixin:APP:ftblibrary-common.mixins.json:ResourceLocationMixin,pl:mixin:APP:ferritecore.mrl.mixin.json:ResourceLocationAccess,pl:mixin:A}
at net.minecraft.util.ResourceLocation.(ResourceLocation.java:42) ~[?:?] {re:mixin,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B,pl:mixin:APP:ftblibrary-common.mixins.json:ResourceLocationMixin,pl:mixin:APP:ferritecore.mrl.mixin.json:ResourceLocationAccess,pl:mixin:A}
at net.minecraftforge.registries.DeferredRegister.register(DeferredRegister.java:114) ~[forge:?] {re:classloading}
at untamedwilds.init.ModItems.registerSpawnItems(ModItems.java:89) ~[untamedwilds:1.16.5-1.0.1] {re:classloading}
at untamedwilds.UntamedWilds.(UntamedWilds.java:53) ~[untamedwilds:1.16.5-1.0.1] {re:classloading}
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.8.0_311] {}
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) ~[?:1.8.0_311] {}
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) ~[?:1.8.0_311] {}
at java.lang.reflect.Constructor.newInstance(Unknown Source) ~[?:1.8.0_311] {}
at java.lang.Class.newInstance(Unknown Source) ~[?:1.8.0_311] {}
at net.minecraftforge.fml.javafmlmod.FMLModContainer.constructMod(FMLModContainer.java:81) ~[forge:36.2] {re:classloading}
at net.minecraftforge.fml.ModContainer.lambda$buildTransitionHandler$4(ModContainer.java:120) ~[forge:?] {re:classloading}
at java.util.concurrent.CompletableFuture$AsyncRun.run(Unknown Source) ~[?:1.8.0_311] {}
at java.util.concurrent.CompletableFuture$AsyncRun.exec(Unknown Source) ~[?:1.8.0_311] {}
at java.util.concurrent.ForkJoinTask.doExec(Unknown Source) ~[?:1.8.0_311] {}
at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(Unknown Source) ~[?:1.8.0_311] {}
at java.util.concurrent.ForkJoinPool.runWorker(Unknown Source) ~[?:1.8.0_311] {re:computing_frames}
at java.util.concurrent.ForkJoinWorkerThread.run(Unknown Source) ~[?:1.8.0_311] {}

• Minecraft version: [1.16.5]
• Version of the mod: [ it happens in both versions]
• Mediaval Craft modpack