A mod crashed on startup!
net.fabricmc.loader.impl.FormattedException: java.lang.RuntimeException: Could not execute entrypoint stage 'preLaunch' due to errors, provided by 'kilt' at 'xyz.bluspring.kilt.loader.KiltEarlyInitializer'!
at net.fabricmc.loader.impl.FormattedException.ofLocalized(FormattedException.java:63)
at net.fabricmc.loader.impl.launch.knot.Knot.init(Knot.java:162)
at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:68)
at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23)
Caused by: java.lang.RuntimeException: Could not execute entrypoint stage 'preLaunch' due to errors, provided by 'kilt' at 'xyz.bluspring.kilt.loader.KiltEarlyInitializer'!
at net.fabricmc.loader.impl.FabricLoaderImpl.lambda$invokeEntrypoints$2(FabricLoaderImpl.java:403)
at net.fabricmc.loader.impl.util.ExceptionUtil.gatherExceptions(ExceptionUtil.java:33)
at net.fabricmc.loader.impl.FabricLoaderImpl.invokeEntrypoints(FabricLoaderImpl.java:401)
at net.fabricmc.loader.impl.launch.knot.Knot.init(Knot.java:160)
... 2 more
Caused by: java.lang.ExceptionInInitializerError
at knot//net.minecraft.class_4970$class_4971.(class_4970.java:3338)
at knot//net.minecraft.class_2689.method_28484(class_2689.java:61)
at java.base/java.util.stream.Streams$StreamBuilderImpl.forEachRemaining(Streams.java:411)
at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:762)
at knot//net.minecraft.class_2689.(class_2689.java:59)
at knot//net.minecraft.class_2689$class_2690.method_11668(class_2689.java:157)
at knot//net.minecraft.class_2248.(class_2248.java:183)
at knot//net.minecraft.class_2189.(class_2189.java:12)
at knot//net.minecraft.class_2246.(class_2246.java:144)
at knot//net.minecraft.class_2358.method_10199(class_2358.java:326)
at knot//net.minecraft.class_2966.method_12851(class_2966.java:54)
at knot//xyz.bluspring.kilt.loader.KiltLoader.initForge(KiltLoader.kt:991)
at knot//xyz.bluspring.kilt.loader.KiltEarlyInitializer.onPreLaunch(KiltEarlyInitializer.kt:8)
at net.fabricmc.loader.impl.FabricLoaderImpl.invokeEntrypoints(FabricLoaderImpl.java:399)
... 3 more
Caused by: java.lang.UnsupportedOperationException: A mod tried to access the state neighbor table directly. Please report this at https://github.com/malte0811/FerriteCore/issues. As a temporary workaround you can enable "populateNeighborTable" in the FerriteCore config
at knot//malte0811.ferritecore.fastmap.table.CrashNeighborTable.crashOnAccess(CrashNeighborTable.java:101)
at knot//malte0811.ferritecore.fastmap.table.CrashNeighborTable.rowKeySet(CrashNeighborTable.java:77)
at knot//me.jellysquid.mods.lithium.common.state.FastImmutableTable.(FastImmutableTable.java:36)
at knot//net.minecraft.class_2688.handler$chc000$lithium$postCreateWithTable(class_2688.java:531)
at knot//net.minecraft.class_2688.method_28496(class_2688.java:1052)
at knot//net.minecraft.class_2689.(class_2689.java:68)
at knot//net.minecraft.class_2689$class_2690.method_11668(class_2689.java:157)
at knot//net.minecraft.class_3611.(class_3611.java:34)
at knot//net.minecraft.class_3609.(class_3609.java:34)
at knot//net.minecraft.class_3621.(class_3621.java:29)
at knot//net.minecraft.class_3621$class_3622.(class_3621.java:125)
at knot//net.minecraft.class_3612.(class_3612.java:8)
... 17 more

You seem to be using a mod that allows (Neo?)Forge mods to be loaded on Fabric. Are you using the Fabric versions of Lithium and FerriteCore, or did you install the (Neo?)Forge version of one or both? What MC version are you on? Lithium and FC both modify the same data structures by default, so they need to "communicate" with each other during launch. To my knowledge this works very well when both are expecting the same loader, but since this communication is heavily based on the loader it probably will not work across "mixed" versions (or, for that matter, probably even when both are expecting Neo/Forge). If that is not the problem, please upload a full log. This is not enough data to go on here.