Well i start the game and when i go to click the game it crashes while saving world screen then it shows me this message "The game crashed whilst mouseclicked event handler
Error: java.lang.OutOfMemoryError: Java heap space" i tried giving it more RAM and even reinstalled it and still does not work. It was working fine just yesterday so i dont know whats going on.

Heres the crash log

---- Minecraft Crash Report -------- Minecraft Crash Report ----// Surprise! Haha. Well, this is awkward.
Time: 1/07/20 10:28 PMDescription: 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 lk$1.a(SourceFile:47) at lk$1.b(SourceFile:32) at le.b(SourceFile:471) at le.a(SourceFile:32) at le$1.a(SourceFile:83) at le$1.b(SourceFile:69) at le.b(SourceFile:471) at le.a(SourceFile:32) at le$1.a(SourceFile:83) at le$1.b(SourceFile:69) at le.b(SourceFile:471) at le.a(SourceFile:32) at le$1.a(SourceFile:83) at le$1.b(SourceFile:69) at lo.a(SourceFile:96) at lo.a(SourceFile:63) at lo.a(SourceFile:26) at dae.a(SourceFile:222) at dae$$Lambda$2903/610379308.apply(Unknown Source) at dae.a(SourceFile:171) at dae.b(SourceFile:150) at duf.a(SourceFile:85) at duf.<init>(SourceFile:77) at duc.b(SourceFile:48) at dqs.b(SourceFile:321) at dlx.a(SourceFile:895) at dqw.e(SourceFile:141) at dqw$$Lambda$2561/788840947.onPress(Unknown Source) at dni.b(SourceFile:33) at dnc.a(SourceFile:16)

A detailed walkthrough of the error, its code path and all known details is as follows:---------------------------------------------------------------------------------------
– Head --Thread: Render threadStacktrace: at java.util.ArrayList.<init>(ArrayList.java:152) at com.google.common.collect.Lists.newArrayListWithCapacity(Lists.java:190) at lk$1.a(SourceFile:47) at lk$1.b(SourceFile:32) at le.b(SourceFile:471) at le.a(SourceFile:32) at le$1.a(SourceFile:83) at le$1.b(SourceFile:69) at le.b(SourceFile:471) at le.a(SourceFile:32) at le$1.a(SourceFile:83) at le$1.b(SourceFile:69) at le.b(SourceFile:471) at le.a(SourceFile:32) at le$1.a(SourceFile:83) at le$1.b(SourceFile:69) at lo.a(SourceFile:96)
– Affected screen --Details: Screen name: dqwStacktrace: at dqs.a(SourceFile:434) at dly.a(SourceFile:92) at dly.c(SourceFile:162) at dly$$Lambda$2873/1501892655.run(Unknown Source) at amn.execute(SourceFile:94) at dly.b(SourceFile:162) at dly$$Lambda$2221/494368303.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.glfwPollEvents(GLFW.java:3101) at com.mojang.blaze3d.systems.RenderSystem.flipFrame(SourceFile:109) at dgy.e(SourceFile:308) at dlx.e(SourceFile:1041) at dlx.e(SourceFile:654) at net.minecraft.client.main.Main.main(SourceFile:215)
– System Details --Details: Minecraft Version: 1.16.1 Minecraft Version ID: 1.16.1 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: 505856888 bytes (482 MB) / 738197504 bytes (704 MB) up to 2684354560 bytes (2560 MB) CPUs: 4 JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx2560M -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M Launched Version: 1.16.1 Backend library: LWJGL version 3.2.2 build 10 Backend API: Intel(R) HD Graphics 4000 GL version 4.0.0 - Build 10.18.10.4358, Intel 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) Resource Packs:  Current Language: English (US) CPU: 4x Intel(R) Core(TM) i5-3337U CPU @ 1.80GHz