So lately my game have just crashed because i was on my other moitor, and so my game was minimized, and when i returned to the game it just closed.
This was from my output log:

Error executing task
java.util.concurrent.ExecutionException: java.lang.IndexOutOfBoundsException: index: 1, length: 77 (expected: range(0, 71))
at java.util.concurrent.FutureTask.report(FutureTask.java:122)
at java.util.concurrent.FutureTask.get(FutureTask.java:192)
at h.a(SourceFile:47)
at bib.az(SourceFile:991)
at bib.a(SourceFile:419)
at net.minecraft.client.main.Main.main(SourceFile:123)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
Caused by: java.lang.IndexOutOfBoundsException: index: 1, length: 77 (expected: range(0, 71))
at io.netty.buffer.AbstractByteBuf.checkIndex0(AbstractByteBuf.java:1353)
at io.netty.buffer.AbstractByteBuf.checkIndex(AbstractByteBuf.java:1348)
at io.netty.buffer.PooledUnsafeDirectByteBuf.internalNioBuffer(PooledUnsafeDirectByteBuf.java:331)
at io.netty.buffer.ByteBufUtil.decodeString(ByteBufUtil.java:630)
at io.netty.buffer.AbstractByteBuf.toString(AbstractByteBuf.java:1213)
at gy.toString(SourceFile:1230)
at gy.e(SourceFile:336)
at brz.a(SourceFile:1572)
at iw.a(SourceFile:55)
at iw.a(SourceFile:9)
at hv$1.run(PacketThreadUtil.java:20)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at h.a(SourceFile:46)
... 9 more