We what do I have to do

[Joaoxman]

Hello everyone, I think I'm in the right forum to ask for this help. I don't understand much about this stuff and I feel safe asking this question to you people who know but I tried to start a server but a mod that worked stopped working and I can't understand why could anyone help me?

---- Minecraft Crash Report ----
// I bet Cylons wouldn't have this problem.

Time: 12-12-2022 22:58
Description: Mod loading error has occurred

java.lang.Exception: Mod Loading has failed
    at net.minecraftforge.fml.CrashReportExtender.dumpModLoadingCrashReport(CrashReportExtender.java:85) [?:?] {re:classloading}
    at net.minecraftforge.fml.client.ClientModLoader.completeModLoading(ClientModLoader.java:188) [?:?] {re:classloading,pl:runtimedistcleaner:A}
    at net.minecraft.client.Minecraft.lambda$null$1(Minecraft.java:508) [?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:betterendforge.mixins.json:MinecraftMixin,pl:mixin:APP:architectury.mixins.json:MixinMinecraft,pl:mixin:APP:dungeons_libraries.mixins.json:MinecraftMixin,pl:mixin:APP:celestial.mixins.json:MinecraftMixin,pl:mixin:APP:abnormals_core.mixins.json:client.MinecraftMixin,pl:mixin:APP:flywheel.mixins.json:ShaderCloseMixin,pl:mixin:APP:create.mixins.json:WindowResizeMixin,pl:mixin:APP:securitycraft.mixins.json:camera.MinecraftMixin,pl:mixin:A,pl:runtimedistcleaner:A}
    at net.minecraft.client.Minecraft$$Lambda$18368/1261951677.run(Unknown Source) [?:?] {}
    at net.minecraft.util.Util.func_215077_a(Util.java:320) [?:?] {re:classloading,re:mixin}
    at net.minecraft.client.Minecraft.lambda$new$2(Minecraft.java:504) [?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:betterendforge.mixins.json:MinecraftMixin,pl:mixin:APP:architectury.mixins.json:MixinMinecraft,pl:mixin:APP:dungeons_libraries.mixins.json:MinecraftMixin,pl:mixin:APP:celestial.mixins.json:MinecraftMixin,pl:mixin:APP:abnormals_core.mixins.json:client.MinecraftMixin,pl:mixin:APP:flywheel.mixins.json:ShaderCloseMixin,pl:mixin:APP:create.mixins.json:WindowResizeMixin,pl:mixin:APP:securitycraft.mixins.json:camera.MinecraftMixin,pl:mixin:A,pl:runtimedistcleaner:A}
    at net.minecraft.client.Minecraft$$Lambda$16947/450303615.accept(Unknown Source) [?:?] {}
    at net.minecraft.client.gui.ResourceLoadProgressGui.func_230430_a_(ResourceLoadProgressGui.java:113) [?:?] {re:classloading,pl:runtimedistcleaner:A}
    at net.minecraft.client.renderer.GameRenderer.func_195458_a(GameRenderer.java:481) [?:?] {re:mixin,pl:accesstransformer:B,xf:fml:better_diving:GameRenderer renderLevel Transformer,xf:fml:fairylights:GameRendererTransformer,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,xf:fml:better_diving:GameRenderer renderLevel Transformer,xf:fml:fairylights:GameRendererTransformer,pl:mixin:A,pl:runtimedistcleaner:A}
    at net.minecraft.client.Minecraft.func_195542_b(Minecraft.java:977) [?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:betterendforge.mixins.json:MinecraftMixin,pl:mixin:APP:architectury.mixins.json:MixinMinecraft,pl:mixin:APP:dungeons_libraries.mixins.json:MinecraftMixin,pl:mixin:APP:celestial.mixins.json:MinecraftMixin,pl:mixin:APP:abnormals_core.mixins.json:client.MinecraftMixin,pl:mixin:APP:flywheel.mixins.json:ShaderCloseMixin,pl:mixin:APP:create.mixins.json:WindowResizeMixin,pl:mixin:APP:securitycraft.mixins.json:camera.MinecraftMixin,pl:mixin:A,pl:runtimedistcleaner:A}
    at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:607) [?:?] {re:mixin,pl:accesstransformer:B,pl:runtimedistcleaner:A,re:classloading,pl:accesstransformer:B,pl:mixin:APP:betterendforge.mixins.json:MinecraftMixin,pl:mixin:APP:architectury.mixins.json:MixinMinecraft,pl:mixin:APP:dungeons_libraries.mixins.json:MinecraftMixin,pl:mixin:APP:celestial.mixins.json:MinecraftMixin,pl:mixin:APP:abnormals_core.mixins.json:client.MinecraftMixin,pl:mixin:APP:flywheel.mixins.json:ShaderCloseMixin,pl:mixin:APP:create.mixins.json:WindowResizeMixin,pl:mixin:APP:securitycraft.mixins.json:camera.MinecraftMixin,pl:mixin:A,pl:runtimedistcleaner:A}
    at net.minecraft.client.main.Main.main(Main.java:184) [?:?] {re:classloading,pl:runtimedistcleaner:A}
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_51] {}
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_51] {}
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_51] {}
    at java.lang.reflect.Method.invoke(Method.java:497) ~[?:1.8.0_51] {re:computing_frames}
    at net.minecraftforge.fml.loading.FMLClientLaunchProvider.lambda$launchService$0(FMLClientLaunchProvider.java:51) [forge-1.16.5-36.2.34.jar:36.2] {}
    at net.minecraftforge.fml.loading.FMLClientLaunchProvider$$Lambda$504/1245639881.call(Unknown Source) [forge-1.16.5-36.2.34.jar:36.2] {}
    at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-8.1.3.jar:?] {}
    at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-8.1.3.jar:?] {}
    at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-8.1.3.jar:?] {}
    at cpw.mods.modlauncher.Launcher.run(Launcher.java:82) [modlauncher-8.1.3.jar:?] {re:classloading}
    at cpw.mods.modlauncher.Launcher.main(Launcher.java:66) [modlauncher-8.1.3.jar:?] {re:classloading}

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

-- Head --
Thread: Render thread
Stacktrace:
    at java.util.ArrayList.rangeCheck(ArrayList.java:653) ~[?:1.8.0_51] {}
-- MOD dynamictrees --
Details:
    Mod File: DynamicTrees-1.16.5-0.10.2.jar
    Failure message: Dynamic Trees (dynamictrees) encountered an error during the common_setup event phase
        java.lang.IndexOutOfBoundsException: Index: 7, Size: 4
    Mod Version: 1.16.5-0.10.2
    Mod Issue URL: https://github.com/DynamicTreesTeam/DynamicTrees/issues
    Exception message: java.lang.IndexOutOfBoundsException: Index: 7, Size: 4
Stacktrace:
    at java.util.ArrayList.rangeCheck(ArrayList.java:653) ~[?:1.8.0_51] {}
    at java.util.ArrayList.remove(ArrayList.java:492) ~[?:1.8.0_51] {}
    at com.ferreusveritas.dynamictrees.worldgen.structure.RegularPatternModifier.replaceTemplate(RegularPatternModifier.java:21) ~[?:1.16.5-0.10.2] {re:classloading}
    at com.ferreusveritas.dynamictrees.worldgen.structure.VillageTreeReplacement.replaceTreesFromVanillaVillages(VillageTreeReplacement.java:34) ~[?:1.16.5-0.10.2] {re:classloading}
    at com.ferreusveritas.dynamictrees.DynamicTrees.onCommonSetup(DynamicTrees.java:116) ~[?:1.16.5-0.10.2] {re:classloading}
    at com.ferreusveritas.dynamictrees.DynamicTrees$$Lambda$8140/1936855063.accept(Unknown Source) ~[?:?] {}
    at net.minecraftforge.eventbus.EventBus.doCastFilter(EventBus.java:247) ~[eventbus-4.0.0.jar:?] {}
    at net.minecraftforge.eventbus.EventBus.lambda$addListener$11(EventBus.java:239) ~[eventbus-4.0.0.jar:?] {}
    at net.minecraftforge.eventbus.EventBus$$Lambda$2995/1269279204.invoke(Unknown Source) ~[?:?] {}
    at net.minecraftforge.eventbus.EventBus$$Lambda$3165/2047717181.invoke(Unknown Source) ~[?:?] {}
    at net.minecraftforge.eventbus.EventBus.post(EventBus.java:302) ~[eventbus-4.0.0.jar:?] {}
    at net.minecraftforge.eventbus.EventBus.post(EventBus.java:283) ~[eventbus-4.0.0.jar:?] {}
    at net.minecraftforge.fml.javafmlmod.FMLModContainer.acceptEvent(FMLModContainer.java:120) ~[?:36.2] {re:classloading}
    at net.minecraftforge.fml.ModContainer.lambda$buildTransitionHandler$4(ModContainer.java:121) ~[?:?] {re:classloading}
    at net.minecraftforge.fml.ModContainer$$Lambda$3327/1721892488.run(Unknown Source) ~[?:?] {}
    at java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1618) ~[?:1.8.0_51] {}
    at java.util.concurrent.CompletableFuture$AsyncRun.exec(CompletableFuture.java:1610) ~[?:1.8.0_51] {}
    at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289) ~[?:1.8.0_51] {}
    at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056) ~[?:1.8.0_51] {}
    at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1689) ~[?:1.8.0_5read.run(ForkJoinWorkerThread.ja1] {}
    at java.util.concurrent.ForkJoinWorkerThva:157) ~[?:1.8.0_51] {}