I know it is a problem with OptiFabric, because whenever I remove it, it works, but optifine doesn't.

I am using OptiFabric version 1.13.16, OptiFine_1.18.2_HD_U_H7, and fabric loader 0.16.0.

Here is my mods list :
Amplified_Nether_v1.1.1
BetterThirdPerson-Fabric-1.18.2-1.8.1
cloth-config-6.5.116-fabric
CreativeCore_FABRIC_v2.6.12_mc1.18.2
eating-animation-1.8
effective-1.2.1
fabric-api-0.59.1+1.18.2
modmenu-3.2.5
notenoughanimations-fabric-1.7.4-mc1.18.2
optifabric-1.13.16
OptiFine_1.18.2_HD_U_H7
PresenceFootsteps-1.5.1
soundphysics-fabric-1.18.2-1.0.6
starlight-1.0.2+fabric.89b8d9f
visuality-0.4.3

Here is my stack-trace :
java.lang.NoClassDefFoundError: net/fabricmc/tinyremapper/IMappingProvider
at me.modmuss50.optifabric.mod.OptifabricSetup.run(OptifabricSetup.java:46)
at java.base/java.util.ArrayList.forEach(ArrayList.java:1511)
at com.chocohead.mm.Plugin.getMixins(Plugin.java:340)
at org.spongepowered.asm.mixin.transformer.PluginHandle.getMixins(PluginHandle.java:128)
at org.spongepowered.asm.mixin.transformer.MixinConfig.postInitialise(MixinConfig.java:796)
at org.spongepowered.asm.mixin.transformer.MixinProcessor.prepareConfigs(MixinProcessor.java:568)
at org.spongepowered.asm.mixin.transformer.MixinProcessor.select(MixinProcessor.java:462)
at org.spongepowered.asm.mixin.transformer.MixinProcessor.checkSelect(MixinProcessor.java:438)
at org.spongepowered.asm.mixin.transformer.MixinProcessor.applyMixins(MixinProcessor.java:290)
at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClass(MixinTransformer.java:234)
at org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClassBytes(MixinTransformer.java:202)
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.getPostMixinClassByteArray(KnotClassDelegate.java:422)
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.tryLoadClass(KnotClassDelegate.java:323)
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.loadClass(KnotClassDelegate.java:218)
at net.fabricmc.loader.impl.launch.knot.KnotClassLoader.loadClass(KnotClassLoader.java:119)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:520)
at java.base/java.lang.Class.forName0(Native Method)
at java.base/java.lang.Class.forName(Class.java:467)
at net.fabricmc.loader.impl.util.DefaultLanguageAdapter.create(DefaultLanguageAdapter.java:50)
at net.fabricmc.loader.impl.entrypoint.EntrypointStorage$NewEntry.getOrCreate(EntrypointStorage.java:117)
at net.fabricmc.loader.impl.entrypoint.EntrypointContainerImpl.getEntrypoint(EntrypointContainerImpl.java:53)
at net.fabricmc.loader.impl.FabricLoaderImpl.invokeEntrypoints(FabricLoaderImpl.java:384)
at net.fabricmc.loader.impl.launch.knot.Knot.init(Knot.java:160)
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.ClassNotFoundException: net.fabricmc.tinyremapper.IMappingProvider
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:520)
at net.fabricmc.loader.impl.launch.knot.KnotClassDelegate.loadClass(KnotClassDelegate.java:226)
at net.fabricmc.loader.impl.launch.knot.KnotClassLoader.loadClass(KnotClassLoader.java:119)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:520)
... 25 more

Your problem is because you are using the wrong Fabric API. If you were using Fabric API 0.76.0 then you wouldn't have an issue while using Fabric Loader 0.14.25

Then only try it with the Fabric Loader, optifine, Fabric API, and optifabric. IF that works then add a couple more mods back in and try again. I think you may be getting a mod conflict.

I tried this API with with both 0.16.0, and 0.14.25. And it still doesn't work.

Here is my new mods list :
Amplified_Nether_v1.1.1
BetterThirdPerson-Fabric-1.18.2-1.8.1
cloth-config-6.5.116-fabric
CreativeCore_FABRIC_v2.6.12_mc1.18.2
eating-animation-1.8
effective-1.2.1
fabric-api-0.76.0+1.18.2
modmenu-3.2.5
notenoughanimations-fabric-1.7.4-mc1.18.2
optifabric-1.13.16
OptiFine_1.18.2_HD_U_H7
PresenceFootsteps-1.5.1
soundphysics-fabric-1.18.2-1.0.6
starlight-1.0.2+fabric.89b8d9f
visuality-0.4.3

You're welcome. I wish you the best of luck.

Tlauncher

I did, the same problem occurs, could you just recommend some alternatives please?

What Launcher are you using?

Did you try this first?
https://tlauncher.org/en/how-install-fabric.html

I just selected fabric 1.18.2 and installed it from the versions list.

I just selected fabric 1.18.2 and installed it from the versions list.

That is where you went wrong. As I said you need to use fabric Loader 0.14.25, Fabric API 0.76.0, Optifabric 1.13.16, OptiFine 1.18.2 HD U H9. Those 4 work just fine. IF just those 4 do not work with the TLauncher then you need to speak to the Dev of the TLauncher or find a Launcher Alternative to use.

Are you sure, because tlauncher is the same thing as a normal launcher, just with cracked accounts.

Are you sure, because tlauncher is the same thing as a normal launcher, just with cracked accounts.

Yes I am very sure. There are a few documents online that explain the TLauncher and Optifabric. I believe the Dev said something about not working on it or something like that.

oh, okay, thank you very much.

I did, the same problem occurs, could you just recommend some alternatives please?