Java failed to write Core Dump when playing FTB Unleashed


I started to play Minecraft with the Modpack "FTB Unleashed" on a Server I am hosting on

When I am playing the game, it always crashes with the Error

A fatal error has been detected by the Java Runtime Environment:

EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x000000006c3d4697, pid=6904, tid=9768

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)
Problematic frame:
V  [jvm.dll+0x4e4697]

Failed to write core dump. Minidumps are not enabled by default on client versions of Windows

If you would like to submit a bug report, please visit:

As the whole Log is over 400 lines long, I posted it on Pastebin:

I even updated my Java Version, I only have x64, no x86, and there are no multiple versions installed


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