Fehler beim Start der Vollversion

Hier kommt mein Fehlerbericht beim Starten der Vollversion 1.16.5 (Java-Edition):

Minecraft Crash Report ----
// Why did you do that?

Time: 01.05.21 12:27
Description: mouseClicked event handler

java.lang.OutOfMemoryError: Java heap space
at java.util.ArrayList.<init>(ArrayList.java:152)
at com.google.common.collect.Lists.newArrayListWithCapacity(Lists.java:190)
at mj$1.a(SourceFile:47)
at mj$1.b(SourceFile:32)
at md.b(SourceFile:471)
at md.a(SourceFile:32)
at md$1.a(SourceFile:83)
at md$1.b(SourceFile:69)
at md.b(SourceFile:471)
at md.a(SourceFile:32)
at md$1.a(SourceFile:83)
at md$1.b(SourceFile:69)
at md.b(SourceFile:471)
at md.a(SourceFile:32)
at md$1.a(SourceFile:83)
at md$1.b(SourceFile:69)
at mn.a(SourceFile:108)
at mn.a(SourceFile:75)
at mn.a(SourceFile:32)
at mn.a(SourceFile:26)
at cyg.a(SourceFile:229)
at cyg$$Lambda$3004/328260510.apply(Unknown Source)
at cyg.a(SourceFile:178)
at cyg.b(SourceFile:157)
at dsm.a(SourceFile:91)
at dsm.<init>(SourceFile:83)
at dsj.b(SourceFile:48)
at dot.b(SourceFile:325)
at djz.a(SourceFile:922)
at doy.d(SourceFile:141)
at doy$$Lambda$2686/235439421.onPress(Unknown Source)
at dlj.b(SourceFile:33)

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.<init>(ArrayList.java:152)
at com.google.common.collect.Lists.newArrayListWithCapacity(Lists.java:190)
at mj$1.a(SourceFile:47)
at mj$1.b(SourceFile:32)
at md.b(SourceFile:471)
at md.a(SourceFile:32)
at md$1.a(SourceFile:83)
at md$1.b(SourceFile:69)
at md.b(SourceFile:471)
at md.a(SourceFile:32)
at md$1.a(SourceFile:83)
at md$1.b(SourceFile:69)
at md.b(SourceFile:471)
at md.a(SourceFile:32)
at md$1.a(SourceFile:83)
at md$1.b(SourceFile:69)
at mn.a(SourceFile:108)
at mn.a(SourceFile:75)

– Affected screen –
Details:
Screen name: doy
Stacktrace:
at dot.a(SourceFile:438)
at dka.a(SourceFile:92)
at dka.c(SourceFile:162)
at dka$$Lambda$2992/1590010953.run(Unknown Source)
at aob.execute(SourceFile:94)
at dka.b(SourceFile:162)
at dka$$Lambda$2352/1878555109.invoke(Unknown Source)
at org.lwjgl.glfw.GLFWMouseButtonCallbackI.callback(GLFWMouseButtonCallbackI.java:36)
at org.lwjgl.system.JNI.invokeV(Native Method)
at org.lwjgl.glfw.GLFW.glfwWaitEventsTimeout(GLFW.java:3174)
at com.mojang.blaze3d.systems.RenderSystem.limitDisplayFPS(SourceFile:127)
at djz.e(SourceFile:1071)
at djz.e(SourceFile:681)
at net.minecraft.client.main.Main.main(SourceFile:215)

– 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: 545253848 bytes (519 MB) / 771751936 bytes (736 MB) up to 2147483648 bytes (2048 MB)
CPUs: 6
JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
Launched Version: 1.16.5
Backend library: LWJGL version 3.2.2 build 10
Backend API: GeForce GTX 560 Ti/PCIe/SSE2 GL version 4.6.0 NVIDIA 391.35, NVIDIA Corporation
GL Caps: Using framebuffer using OpenGL 3.0
Using VBOs: Yes
Is Modded: Probably not. Jar signature remains and client brand is untouched.
Type: Client (map_client.txt)
Graphics mode: fancy
Resource Packs: vanilla
Current Language: Deutsch (Deutschland)
CPU: 6x AMD Phenom(tm) II X6 1055T Processor