I added two mods, one is JEI, the other is MCBBS Wiki Mod (its code:https://github.com/QWERTY770/MCBBS-Wiki-Mod).
I am sure this is not a problem about MCBBS Wiki Mod.

I have tried to restart the game, but no use.

That's really a strange problem.Please help me.

Here's the FML crash log:

---- Minecraft Crash Report ----
// Daisy, daisy...

Time: 21-1-8 下午6:50
Description: Mod loading error has occurred

java.lang.Exception: Mod Loading has failed
at net.minecraftforge.fml.CrashReportExtender.dumpModLoadingCrashReport(CrashReportExtender.java:85) ~[forge-1.16.4-35.1.0_mapped_snapshot_20201028-1.16.3-recomp.jar:?] {re:classloading}
at net.minecraftforge.fml.client.ClientModLoader.completeModLoading(ClientModLoader.java:188) ~[forge-1.16.4-35.1.0_mapped_snapshot_20201028-1.16.3-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.lambda$null$1(Minecraft.java:513) ~[forge-1.16.4-35.1.0_mapped_snapshot_20201028-1.16.3-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.util.Util.acceptOrElse(Util.java:323) ~[forge-1.16.4-35.1.0_mapped_snapshot_20201028-1.16.3-recomp.jar:?] {re:classloading}
at net.minecraft.client.Minecraft.lambda$new$2(Minecraft.java:509) ~[forge-1.16.4-35.1.0_mapped_snapshot_20201028-1.16.3-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.gui.ResourceLoadProgressGui.render(ResourceLoadProgressGui.java:113) ~[forge-1.16.4-35.1.0_mapped_snapshot_20201028-1.16.3-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
at net.minecraft.client.renderer.GameRenderer.updateCameraAndRender(GameRenderer.java:492) ~[forge-1.16.4-35.1.0_mapped_snapshot_20201028-1.16.3-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:1002) ~[forge-1.16.4-35.1.0_mapped_snapshot_20201028-1.16.3-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.Minecraft.run(Minecraft.java:612) ~[forge-1.16.4-35.1.0_mapped_snapshot_20201028-1.16.3-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
at net.minecraft.client.main.Main.main(Main.java:184) ~[forge-1.16.4-35.1.0_mapped_snapshot_20201028-1.16.3-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_261] {}
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_261] {}
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_261] {}
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_261] {}
at net.minecraftforge.userdev.FMLUserdevClientLaunchProvider.lambda$launchService$0(FMLUserdevClientLaunchProvider.java:52) ~[forge-1.16.4-35.1.0_mapped_snapshot_20201028-1.16.3-recomp.jar:?] {}
at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-8.0.6.jar:?] {}
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-8.0.6.jar:?] {}
at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-8.0.6.jar:?] {}
at cpw.mods.modlauncher.Launcher.run(Launcher.java:82) [modlauncher-8.0.6.jar:?] {}
at cpw.mods.modlauncher.Launcher.main(Launcher.java:66) [modlauncher-8.0.6.jar:?] {}
at net.minecraftforge.userdev.LaunchTesting.main(LaunchTesting.java:105) [forge-1.16.4-35.1.0_mapped_snapshot_20201028-1.16.3-recomp.jar:?] {}

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

-- Head --
Thread: Render thread
Stacktrace:
at mezz.jei.config.ModIdFormattingConfig.parseFriendlyModNameFormat(ModIdFormattingConfig.java:112) ~[jei:7.6.1.65] {re:classloading}
-- MOD jei --
Details:
Mod File: jei-1.16.4-7.6.1.65.jar
Failure message: Just Enough Items (jei) has failed to load correctly
java.lang.NoSuchMethodError: net.minecraft.util.text.TextFormatting.func_96300_b(Ljava/lang/String;)Lnet/minecraft/util/text/TextFormatting;
Mod Version: 7.6.1.65
Mod Issue URL: https://github.com/mezz/JustEnoughItems/issues?q=is%3Aissue
Exception message: java.lang.NoSuchMethodError: net.minecraft.util.text.TextFormatting.func_96300_b(Ljava/lang/String;)Lnet/minecraft/util/text/TextFormatting;
Stacktrace:
at mezz.jei.config.ModIdFormattingConfig.parseFriendlyModNameFormat(ModIdFormattingConfig.java:112) ~[jei:7.6.1.65] {re:classloading}
at mezz.jei.config.ModIdFormattingConfig.(ModIdFormattingConfig.java:36) ~[jei:7.6.1.65] {re:classloading}
at mezz.jei.config.JEIClientConfig.(JEIClientConfig.java:25) ~[jei:7.6.1.65] {re:classloading}
at mezz.jei.JustEnoughItems.clientStart(JustEnoughItems.java:34) ~[jei:7.6.1.65] {re:classloading}
at mezz.jei.JustEnoughItems.lambda$null$0(JustEnoughItems.java:29) ~[jei:7.6.1.65] {re:classloading}
at net.minecraftforge.fml.DistExecutor.unsafeRunWhenOn(DistExecutor.java:125) ~[forge:?] {re:classloading}
at net.minecraftforge.fml.DistExecutor.runWhenOn(DistExecutor.java:109) ~[forge:?] {re:classloading}
at mezz.jei.JustEnoughItems.(JustEnoughItems.java:29) ~[jei:7.6.1.65] {re:classloading}
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[?:1.8.0_261] {}
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[?:1.8.0_261] {}
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[?:1.8.0_261] {}
at java.lang.reflect.Constructor.newInstance(Constructor.java:423) ~[?:1.8.0_261] {}
at java.lang.Class.newInstance(Class.java:442) ~[?:1.8.0_261] {}
at net.minecraftforge.fml.javafmlmod.FMLModContainer.constructMod(FMLModContainer.java:81) ~[forge:35.1] {re:classloading}
at net.minecraftforge.fml.ModContainer.lambda$buildTransitionHandler$4(ModContainer.java:120) ~[forge:?] {re:classloading}
at java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1640) ~[?:1.8.0_261] {}
at java.util.concurrent.CompletableFuture$AsyncRun.exec(CompletableFuture.java:1632) ~[?:1.8.0_261] {}
at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289) ~[?:1.8.0_261] {}
at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056) ~[?:1.8.0_261] {}
at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692) ~[?:1.8.0_261] {}
at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:172) ~[?:1.8.0_261] {}

-- System Details --
Details:
Minecraft Version: 1.16.4
Minecraft Version ID: 1.16.4
Operating System: Windows 10 (amd64) version 10.0
Java Version: 1.8.0_261, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 732111968 bytes (698 MB) / 1047003136 bytes (998 MB) up to 1888485376 bytes (1801 MB)
CPUs: 8
JVM Flags: 1 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump
ModLauncher: 8.0.6+85+master.325de55
ModLauncher launch target: fmluserdevclient
ModLauncher naming: mcp
ModLauncher services:
/mixin-0.8.2.jar mixin PLUGINSERVICE
/eventbus-3.0.5-service.jar eventbus PLUGINSERVICE
/forge-1.16.4-35.1.0_mapped_snapshot_20201028-1.16.3-launcher.jar object_holder_definalize PLUGINSERVICE
/forge-1.16.4-35.1.0_mapped_snapshot_20201028-1.16.3-launcher.jar runtime_enum_extender PLUGINSERVICE
/accesstransformers-2.2.0-shadowed.jar accesstransformer PLUGINSERVICE
/forge-1.16.4-35.1.0_mapped_snapshot_20201028-1.16.3-launcher.jar capability_inject_definalize PLUGINSERVICE
/forge-1.16.4-35.1.0_mapped_snapshot_20201028-1.16.3-launcher.jar runtimedistcleaner PLUGINSERVICE
/mixin-0.8.2.jar mixin TRANSFORMATIONSERVICE
/forge-1.16.4-35.1.0_mapped_snapshot_20201028-1.16.3-launcher.jar fml TRANSFORMATIONSERVICE
FML: 35.1
Forge: net.minecraftforge:35.1.0
FML Language Providers:
[email protected]
minecraft@1
Mod List:
client-extra.jar |Minecraft |minecraft |1.16.4 |CREATE_REG|a1:d4:5e:04:4f:d3:d6:e0:7b:37:97:cf:77:b0:de:ad:4a:47:ce:8c:96:49:5f:0a:cf:8c:ae:b2:6d:4b:8a:3f
forge-1.16.4-35.1.0_mapped_snapshot_20201028-1.16.|Forge |forge |35.1.0 |CREATE_REG|NOSIGNATURE
main |MCBBS Wiki |mcbbswiki |0.6b1 |CREATE_REG|NOSIGNATURE
jei-1.16.4-7.6.1.65.jar |Just Enough Items |jei |7.6.1.65 |ERROR |NOSIGNATURE
Crash Report UUID: 3bb760dc-a628-4874-8949-f90d219d196a

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.

In addition:
Just now, I compared the code on the Github with the code in the jei-1.16.4-7.6.1.65.jar file (decompiled by Intellij IDEA).

Line 112 in mezz.jei.config.ModIdFormattingConfig.java (Github):
TextFormatting valueByName = TextFormatting.getValueByName(string);

The same place in the jei-1.16.4-7.6.1.65.jar file:
TextFormatting valueByName = TextFormatting.func_96300_b(string);

They are not the same.This is why the game crashed.

Maybe someone should re-compile the mod and upload it to CurseForge.
`