My friend gets crashed with this error below. We are playing Enigmatica 6 and this occurs when he starts loading Minecraft, not when entering a server.

[19Eyl2021 02:45:38.015] [modloading-worker-1/ERROR] [net.minecraftforge.fml.javafmlmod.FMLModContainer/LOADING]: Failed to create mod instance. ModID: chipped, class com.grimbo.chipped.Chipped net.minecraft.util.ResourceLocationException: Non [a-z0-9/._-] character in path of location: chipped:bırch_wood_glass_1 at net.minecraft.util.ResourceLocation.<init>(ResourceLocation.java:33) ~[?:?] at net.minecraft.util.ResourceLocation.<init>(ResourceLocation.java:42) ~[?:?] at net.minecraftforge.registries.DeferredRegister.register(DeferredRegister.java:114) ~[?:?] at com.grimbo.chipped.block.ChippedBlocks.register(ChippedBlocks.java:305) ~[?:1.1.2] at com.grimbo.chipped.block.ChippedBlocks.registerBlocks(ChippedBlocks.java:300) ~[?:1.1.2] at com.grimbo.chipped.block.ChippedBlocks.register(ChippedBlocks.java:164) ~[?:1.1.2] at com.grimbo.chipped.Chipped.<init>(Chipped.java:45) ~[?:1.1.2] at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:?] at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[?:?] at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:?] at java.lang.reflect.Constructor.newInstance(Constructor.java:422) ~[?:?] at java.lang.Class.newInstance(Class.java:442) ~[?:?] at net.minecraftforge.fml.javafmlmod.FMLModContainer.constructMod(FMLModContainer.java:81) [?:36.2] at net.minecraftforge.fml.javafmlmod.FMLModContainer$$Lambda$2946/629334547.run(Unknown Source) [?:36.2] at net.minecraftforge.fml.ModContainer.lambda$buildTransitionHandler$4(ModContainer.java:120) [?:?] at net.minecraftforge.fml.ModContainer$$Lambda$3608/1984431920.run(Unknown Source) [?:?] at java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1618) [?:?] at java.util.concurrent.CompletableFuture$AsyncRun.exec(CompletableFuture.java:1610) [?:?] at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289) [?:?] at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056) [?:?] at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1689) [?:?] at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157) [?:?]