So I Have been testing all of my mods for my server, because it has been crashing lately.
And IE was the problem, none of the other mods.
The mods I used as a companion were just Optifine and JustEnoughItems.
Here's the crash report; could you fix it please?

---- Minecraft Crash Report ----
// Would you like a cupcake?

Time: 09/06/22 11:36 PM
Description: Rendering chunk

java.lang.OutOfMemoryError: Rendering chunk
at sun.misc.Unsafe.allocateMemory(Native Method) ~[?:1.8.0_331] {}
at java.nio.DirectByteBuffer.(Unknown Source) ~[?:1.8.0_331] {}
at java.nio.ByteBuffer.allocateDirect(Unknown Source) ~[?:1.8.0_331] {}
at net.minecraft.client.renderer.GLAllocation.func_74524_c(SourceFile:18) ~[?:?] {re:classloading}
at net.optifine.Config.createDirectIntBuffer(Config.java:2871) ~[?:?] {re:classloading}
at net.optifine.render.VboRegion.expandVbo(VboRegion.java:289) ~[?:?] {re:classloading}
at net.optifine.render.VboRegion.checkVboSize(VboRegion.java:229) ~[?:?] {re:classloading}
at net.optifine.render.VboRegion.bufferData(VboRegion.java:106) ~[?:?] {re:classloading}
at net.minecraft.client.renderer.vertex.VertexBuffer.func_227880_c_(VertexBuffer.java:92) ~[?:?] {re:classloading,xf:OptiFine:default}
at net.minecraft.client.renderer.vertex.VertexBuffer.func_227878_b_(VertexBuffer.java:74) ~[?:?] {re:classloading,xf:OptiFine:default}
at net.minecraft.client.renderer.chunk.ChunkRenderDispatcher.func_228904_b_(ChunkRenderDispatcher.java:280) ~[?:?] {re:classloading,xf:OptiFine:default}
at net.minecraft.client.renderer.chunk.ChunkRenderDispatcher.lambda$uploadChunkLayer$6(ChunkRenderDispatcher.java:274) ~[?:?] {re:classloading,xf:OptiFine:default}
at java.util.concurrent.CompletableFuture.uniCompose(Unknown Source) ~[?:1.8.0_331] {}
at java.util.concurrent.CompletableFuture$UniCompose.tryFire(Unknown Source) ~[?:1.8.0_331] {}
at java.util.concurrent.CompletableFuture.postComplete(Unknown Source) ~[?:1.8.0_331] {}
at java.util.concurrent.CompletableFuture$AsyncRun.run(Unknown Source) ~[?:1.8.0_331] {}
at net.minecraft.client.renderer.chunk.ChunkRenderDispatcher.func_228908_d_(ChunkRenderDispatcher.java:242) ~[?:?] {re:classloading,xf:OptiFine:default}
at net.minecraft.client.renderer.WorldRenderer.func_174967_a(WorldRenderer.java:3139) ~[?:?] {re:mixin,xf:OptiFine:default,re:classloading,xf:OptiFine:default,pl:mixin:APP:immersiveengineering.mixins.json:accessors.client.WorldRendererAccess,pl:mixin:APP:immersiveengineering.mixins.json:coremods.client.WorldRendererMixin,pl:mixin:A}
at net.minecraft.client.renderer.WorldRenderer.func_228426_a_(WorldRenderer.java:1591) ~[?:?] {re:mixin,xf:OptiFine:default,re:classloading,xf:OptiFine:default,pl:mixin:APP:immersiveengineering.mixins.json:accessors.client.WorldRendererAccess,pl:mixin:APP:immersiveengineering.mixins.json:coremods.client.WorldRendererMixin,pl:mixin:A}
at net.minecraft.client.renderer.GameRenderer.func_228378_a_(GameRenderer.java:1022) ~[?:?] {re:mixin,pl:accesstransformer:B,xf:OptiFine:default,re:classloading,pl:accesstransformer:B,xf:OptiFine:default}
at net.minecraft.client.renderer.GameRenderer.func_195458_a(GameRenderer.java:693) ~[?:?] {re:mixin,pl:accesstransformer:B,xf:OptiFine:default,re:classloading,pl:accesstransformer:B,xf:OptiFine:default}
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:immersiveengineering.mixins.json:accessors.client.MinecraftAccess,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:immersiveengineering.mixins.json:accessors.client.MinecraftAccess,pl:mixin:A,pl:runtimedistcleaner:A}
at net.minecraft.client.main.Main.main(Main.java:184) ~[1.16.5-forge-36.2.34.jar:?] {re:classloading,pl:runtimedistcleaner:A}
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_331] {}
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_331] {}
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_331] {}
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_331] {}
at net.minecraftforge.fml.loading.FMLClientLaunchProvider.lambda$launchService$0(FMLClientLaunchProvider.java:51) ~[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:?] {}
at cpw.mods.modlauncher.Launcher.main(Launcher.java:66) [modlauncher-8.1.3.jar:?] {}
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_331] {}
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_331] {}
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_331] {}
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_331] {}
at net.minecraft.a.m.main(Unknown Source) [laulib-1.0.jar:?] {}

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

-- System Details --
Details:
Minecraft Version: 1.16.5
Minecraft Version ID: 1.16.5
Operating System: Windows 10 (x86) version 10.0
Java Version: 1.8.0_331, Oracle Corporation
Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
Memory: 234088144 bytes (223 MB) / 838860800 bytes (800 MB) up to 838860800 bytes (800 MB)
CPUs: 8
JVM Flags: 11 total; -Xmx800M -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M -XX:+IgnoreUnrecognizedVMOptions -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -XX:+IgnoreUnrecognizedVMOptions
ModLauncher: 8.1.3+8.1.3+main-8.1.x.c94d18ec
ModLauncher launch target: fmlclient
ModLauncher naming: srg
ModLauncher services:
/mixin-0.8.4.jar mixin PLUGINSERVICE
/eventbus-4.0.0.jar eventbus PLUGINSERVICE
/forge-1.16.5-36.2.34.jar object_holder_definalize PLUGINSERVICE
/forge-1.16.5-36.2.34.jar runtime_enum_extender PLUGINSERVICE
/accesstransformers-3.0.1.jar accesstransformer PLUGINSERVICE
/forge-1.16.5-36.2.34.jar capability_inject_definalize PLUGINSERVICE
/forge-1.16.5-36.2.34.jar runtimedistcleaner PLUGINSERVICE
/mixin-0.8.4.jar mixin TRANSFORMATIONSERVICE
/OptiFine_1.16.5_HD_U_G8.jar OptiFine TRANSFORMATIONSERVICE
/forge-1.16.5-36.2.34.jar fml TRANSFORMATIONSERVICE
FML: 36.2
Forge: net.minecraftforge:36.2.34
FML Language Providers:
[email protected]
minecraft@1
Mod List:
forge-1.16.5-36.2.34-client.jar |Minecraft |minecraft |1.16.5 |DONE |Manifest: NOSIGNATURE
forge-1.16.5-36.2.34-universal.jar |Forge |forge |36.2.34 |DONE |Manifest: 22:af:21:d8:19:82:7f:93:94:fe:2b:ac:b7:e4:41:57:68:39:87:b1:a7:5c:c6:44:f9:25:74:21:14:f5:0d:90
ImmersiveEngineering-1.16.5-5.1.0-148.jar |Immersive Engineering |immersiveengineering |1.16.5-5.1.0-148 |DONE |Manifest: NOSIGNATURE
jei-1.16.5-7.7.1.152.jar |Just Enough Items |jei |7.7.1.152 |DONE |Manifest: NOSIGNATURE
Crash Report UUID: 1afa37bc-e168-4b9a-9ee8-982eadd58ba9
OptiFine Version: OptiFine_1.16.5_HD_U_G8
OptiFine Build: 20210515-161946
Render Distance Chunks: 16
Mipmaps: 4
Anisotropic Filtering: 1
Antialiasing: 0
Multitexture: false
Shaders: null
OpenGlVersion: 4.6.14761 Compatibility Profile Context 21.30.23.04 30.0.13023.4001
OpenGlRenderer: Radeon RX550/550 Series
OpenGlVendor: ATI Technologies Inc.
CpuCount: 8

Of course it was.

Nvm, it was optifine.