Problème lancement de Minecraft

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J'ai un problème depuis hier, mon minecraft crash au lancement une fois sur deux, et quand il est enfin lancé, il crash quand je rejoins un monde ou un serveur. Je suis sous windows 10, 64 bits, 8 Go ram et carte graphique gtx 1650. Le bug est apparut tout seul, je n'ai rien modifié avant qu'il n'arrive.
#
# There is insufficient memory for the Java Runtime Environment to continue.
# Native memory allocation (mmap) failed to map 469762048 bytes for Failed to commit pages from 114688 of length 114688
# Possible reasons:
# The system is out of physical RAM or swap space
# In 32 bit mode, the process size limit was hit
# Possible solutions:
# Reduce memory load on the system
# Increase physical memory or swap space
# Check if swap backing store is full
# Use 64 bit Java on a 64 bit OS
# Decrease Java heap size (-Xmx/-Xms)
# Decrease number of Java threads
# Decrease Java thread stack sizes (-Xss)
# Set larger code cache with -XX:ReservedCodeCacheSize=
# This output file may be truncated or incomplete.
#
# Out of Memory Error (os_windows.cpp:3324), pid=69236, tid=69364
#
# JRE version: Java(TM) SE Runtime Environment (8.0_51-b16) (build 1.8.0_51-b16)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.51-b03 mixed mode windows-amd64 compressed oops)
# Failed to write core dump. Minidumps are not enabled by default on client versions of Windows
#