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Today my game crashed a million times but in the morning it was working out perfectly fine. But when it became 9:16 PM or before it crashed all of a sudden, here is my crash report.

---- Minecraft Crash Report ----
// You're mean.

Time: 6/3/17 9:06 PM
Description: Unexpected error

java.lang.RuntimeException: No OpenGL context found in the current thread.
at org.lwjgl.opengl.GLContext.getCapabilities(GLContext.java:124)
at org.lwjgl.opengl.GL11.glGetError(GL11.java:1299)
at ave.b(SourceFile:832)
at ave.av(SourceFile:894)
at ave.a(SourceFile:325)
at net.minecraft.client.main.Main.main(SourceFile:124)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:131)
at net.minecraft.launchwrapper.Launch.main(Launch.java:27)

A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- System Details --
Details:
Minecraft Version: 1.8.9
Operating System: Windows 10 (x86) version 10.0
CPU: 4x Intel(R) Core(TM) i5-4570 CPU @ 3.20GHz
Java Version: 1.8.0_131, Oracle Corporation
Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
Memory: 44102336 bytes (42 MB) / 284360704 bytes (271 MB) up to 1060372480 bytes (1011 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
Launched Version: 1.8.9-OptiFine_HD_U_H6
LWJGL: 2.9.4
OpenGL: ~~ERROR~~ RuntimeException: No OpenGL context found in the current thread.
GL Caps: Using GL 1.3 multitexturing.
Using GL 1.3 texture combiners.
Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.
Shaders are available because OpenGL 2.1 is supported.
VBOs are available because OpenGL 1.5 is supported.

Using VBOs: No
Is Modded: Very likely; Jar signature invalidated
Type: Client (map_client.txt)
Resource Packs: bibliocraft_paintings_example_resource_pack.zip, Soartex-Fanver-1.8.zip
Current Language: English (US)
Profiler Position: N/A (disabled)
CPU: 4x Intel(R) Core(TM) i5-4570 CPU @ 3.20GHz
OptiFine Version: OptiFine_1.8.9_HD_U_H6
Render Distance Chunks: 12
Mipmaps: 4
Anisotropic Filtering: 1
Antialiasing: 0
Multitexture: false
Shaders: null
OpenGlVersion: 4.5.13474 Compatibility Profile Context 22.19.162.4
OpenGlRenderer: AMD Radeon R7 200 Series
OpenGlVendor: ATI Technologies Inc.
CpuCount: 4

update your gpu driver

Follow the instructions here: http://hopper.minecraft.net/help/pixel-format-not-accelerated/support/#dxdiag