so i allocated 16 gb of ram to minecraft and the game itself i have optifabric and vm mod i got the vm mod to work and it displays everything correctly but when i click the moniter to enter the vm it crashes

im using windows 7 on the vm and it has 4 gb of ram allocated to it

i have gotten this error

---- Minecraft Crash Report ----
// Hey, that tickles! Hehehe!

Time: 6/19/21 12:45 PM
Description: Rendering screen

java.lang.NoSuchMethodError: java.nio.DoubleBuffer.clear()Ljava/nio/DoubleBuffer;
at mcvmcomputers.client.gui.GuiFocus.method_25394(GuiFocus.java:78)
at net.minecraft.class_757.method_3192(class_757.java:824)
at net.minecraft.class_310.method_1523(class_310.java:1048)
at net.minecraft.class_310.method_1514(class_310.java:681)
at net.minecraft.client.main.Main.main(Main.java:215)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at net.fabricmc.loader.game.MinecraftGameProvider.launch(MinecraftGameProvider.java:226)
at net.fabricmc.loader.launch.knot.Knot.init(Knot.java:139)
at net.fabricmc.loader.launch.knot.KnotClient.main(KnotClient.java:27)

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

-- Head --
Thread: Render thread
Stacktrace:
at mcvmcomputers.client.gui.GuiFocus.method_25394(GuiFocus.java:78)

-- Screen render details --
Details:
Screen name: mcvmcomputers.client.gui.GuiFocus
Mouse location: Scaled: (240, 127). Absolute: (960.000000, 508.000000)
Screen size: Scaled: (480, 255). Absolute: (1920, 1017). Scale factor of 4.000000

-- Affected level --
Details:
All players: 1 total; [class_746['spamman27'/105, l='ClientLevel', x=-274.75, y=79.00, z=-224.53]]
Chunk stats: Client Chunk Cache: 529, 322
Level dimension: minecraft:overworld
Level spawn location: World: (-173,10,-172), Chunk: (at 3,0,4 in -11,-11; contains blocks -176,0,-176 to -161,255,-161), Region: (-1,-1; contains chunks -32,-32 to -1,-1, blocks -512,0,-512 to -1,255,-1)
Level time: 877659 game time, 92333 day time
Server brand: fabric
Server type: Integrated singleplayer server
Stacktrace:
at net.minecraft.class_638.method_8538(class_638.java:617)
at net.minecraft.class_310.method_1587(class_310.java:2239)
at net.minecraft.class_310.method_1514(class_310.java:699)
at net.minecraft.client.main.Main.main(Main.java:215)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at net.fabricmc.loader.game.MinecraftGameProvider.launch(MinecraftGameProvider.java:226)
at net.fabricmc.loader.launch.knot.Knot.init(Knot.java:139)
at net.fabricmc.loader.launch.knot.KnotClient.main(KnotClient.java:27)

-- System Details --
Details:
Minecraft Version: 1.16.5
Minecraft Version ID: 1.16.5
Operating System: Windows 10 (amd64) version 10.0
Java Version: 1.8.0_51, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 1243022048 bytes (1185 MB) / 4026531840 bytes (3840 MB) up to 21474836480 bytes (20480 MB)
CPUs: 8
JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx20G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=64M
Fabric Mods:
fabric: Fabric API 0.35.1+1.16
fabric-api-base: Fabric API Base 0.3.0+c88702897d
fabric-api-lookup-api-v1: Fabric API Lookup API (v1) 1.1.0+731c05f37d
fabric-biome-api-v1: Fabric Biome API (v1) 3.1.10+3661eaa17d
fabric-blockrenderlayer-v1: Fabric BlockRenderLayer Registration (v1) 1.1.5+ca58154a7d
fabric-command-api-v1: Fabric Command API (v1) 1.1.1+351679a77d
fabric-commands-v0: Fabric Commands (v0) 0.2.2+ca58154a7d
fabric-containers-v0: Fabric Containers (v0) 0.1.11+9354966b7d
fabric-content-registries-v0: Fabric Content Registries (v0) 0.2.1+ca58154a7d
fabric-crash-report-info-v1: Fabric Crash Report Info (v1) 0.1.3+ca58154a7d
fabric-dimensions-v1: Fabric Dimensions API (v1) 2.0.6+61336ba97d
fabric-entity-events-v1: Fabric Entity Events (v1) 1.1.0+c88702897d
fabric-events-interaction-v0: Fabric Events Interaction (v0) 0.4.2+ca58154a7d
fabric-events-lifecycle-v0: Fabric Events Lifecycle (v0) 0.2.1+ca58154a7d
fabric-game-rule-api-v1: Fabric Game Rule API (v1) 1.0.6+ca58154a7d
fabric-item-api-v1: Fabric Item API (v1) 1.2.1+ca58154a7d
fabric-item-groups-v0: Fabric Item Groups (v0) 0.2.7+2868a2287d
fabric-key-binding-api-v1: Fabric Key Binding API (v1) 1.0.4+9354966b7d
fabric-keybindings-v0: Fabric Key Bindings (v0) 0.2.1+ca58154a7d
fabric-lifecycle-events-v1: Fabric Lifecycle Events (v1) 1.2.1+ca58154a7d
fabric-loot-tables-v1: Fabric Loot Tables (v1) 1.0.2+ca58154a7d
fabric-mining-levels-v0: Fabric Mining Levels (v0) 0.1.3+ca58154a7d
fabric-models-v0: Fabric Models (v0) 0.3.0+bc7a746f7d
fabric-networking-api-v1: Fabric Networking API (v1) 1.0.3+e3c9d0627d
fabric-networking-blockentity-v0: Fabric Networking Block Entity (v0) 0.2.8+ca58154a7d
fabric-networking-v0: Fabric Networking (v0) 0.3.2+ca58154a7d
fabric-object-builder-api-v1: Fabric Object Builder API (v1) 1.9.5+c88702897d
fabric-object-builders-v0: Fabric Object Builders (v0) 0.7.2+ca58154a7d
fabric-particles-v1: Fabric Particles (v1) 0.2.4+ca58154a7d
fabric-registry-sync-v0: Fabric Registry Sync (v0) 0.7.4+ca58154a7d
fabric-renderer-api-v1: Fabric Renderer API (v1) 0.4.3+0ef801b67d
fabric-renderer-indigo: Fabric Renderer - Indigo 0.4.4+ca58154a7d
fabric-renderer-registries-v1: Fabric Renderer Registries (v1) 2.3.0+2868a2287d
fabric-rendering-data-attachment-v1: Fabric Rendering Data Attachment (v1) 0.1.5+ca58154a7d
fabric-rendering-fluids-v1: Fabric Rendering Fluids (v1) 0.1.13+ca58154a7d
fabric-rendering-v0: Fabric Rendering (v0) 1.1.2+ca58154a7d
fabric-rendering-v1: Fabric Rendering (v1) 1.6.0+2868a2287d
fabric-resource-loader-v0: Fabric Resource Loader (v0) 0.4.6+2868a2287d
fabric-screen-api-v1: Fabric Screen API (v1) 1.0.0+c045166c7d
fabric-screen-handler-api-v1: Fabric Screen Handler API (v1) 1.1.5+9354966b7d
fabric-structure-api-v1: Fabric Structure API (v1) 1.1.11+ca0ef93d7d
fabric-tag-extensions-v0: Fabric Tag Extensions (v0) 1.1.1+ca58154a7d
fabric-textures-v0: Fabric Textures (v0) 1.0.6+ca58154a7d
fabric-tool-attribute-api-v1: Fabric Tool Attribute API (v1) 1.2.7+8183d3957d
fabricloader: Fabric Loader 0.11.1
java: Java HotSpot(TM) 64-Bit Server VM 8
mcvmcomputers: VM Computers 1.4.15
minecraft: Minecraft 1.16.5
mm: Manningham Mills 2.2
optifabric: OptiFabric 1.11.1
Launched Version: fabric-loader-0.11.1-1.16.5
Backend library: LWJGL version 3.2.2 build 10
Backend API: Radeon RX 570 Series GL version 4.6.13596 Compatibility Profile Context 20.10.35.02 27.20.1034.6, ATI Technologies Inc.
GL Caps: Using framebuffer using OpenGL 3.0
Using VBOs: Yes
Is Modded: Definitely; Client brand changed to 'fabric'
Type: Client (map_client.txt)
Graphics mode: fast
Resource Packs: Fabric Mods
Current Language: English (US)
CPU: 8x Intel(R) Core(TM) i7 CPU 960 @ 3.20GHz
OptiFine Version: OptiFine_1.16.5_HD_U_G8
OptiFine Build: 20210515-161946
Render Distance Chunks: 9
Mipmaps: 0
Anisotropic Filtering: 1
Antialiasing: 0
Multitexture: false
Shaders: null
OpenGlVersion: 4.6.13596 Compatibility Profile Context 20.10.35.02 27.20.1034.6
OpenGlRenderer: Radeon RX 570 Series
OpenGlVendor: ATI Technologies Inc.
CpuCount: 8

-- OptiFabric --
Details:
OptiFine jar designed for: 1.16.5
OptiFine jar version: OptiFine_1.16.5_HD_U_G8
OptiFine jar status: Valid OptiFine installer
OptiFine remapped jar: D:/New Compressed (zipped) Folder/nonhacks/vm/data/.minecraft/.optifine/OptiFine_1.16.5_HD_U_G8/Optifine-mapped.jar
OptiFabric error:

Please wait a little for the 1.17 version to come out, then this issue will probably be fixed (This is a weird Java issue)

same thing here please update to 1.17.1 me and my friend really want to get this fixed