Fatal Error In Java Runtime Environment.

I was playing the game when as soon as I typed /gmc:

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1. A fatal error has been detected by the Java Runtime Environment:
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2. Internal Error (os_windows_x86.cpp:143), pid=3928, tid=1308

3. guarantee(result == EXCEPTION_CONTINUE_EXECUTION) failed: Unexpected result from topLevelExceptionFilter
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4. JRE version: Java(TM) SE Runtime Environment (7.0_72-b14) (build 1.7.0_72-b14)

5. Java VM: Java HotSpot(TM) 64-Bit Server VM (24.72-b04 mixed mode windows-amd64 compressed oops)

6. Failed to write core dump. Minidumps are not enabled by default on client versions of Windows
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7. An error report file with more information is saved as:

8. C:\Users\Lewis\Desktop\Icons\Minecraft 3RD Party Programs\Files For Programs (DO NOT EDIT)\MultiMC\instances\1.81\minecraft\hs_err_pid3928.log
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9. If you would like to submit a bug report, please visit:

10. http://bugreport.sun.com/bugreport/crash.jsp
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    AL lib: (EE) alc_cleanup: 1 device not closed

[error occurred during error reporting , id 0xc0000005]

Minecraft exited with exitcode -1.

The launcher I use has nothing to do with it because all it does is allows me to have multiple instances of Minecraft. I have attached the log.

Regards,

Lewislovesgames

P.S. Happy New Year!