Minecraft 1.11.2 Forge crash

Hi guys,

I installed minecraft forge (version 1.11.2) and every time I try to open or create a new world it says "Shutting down internal server..." and crashes.

Crash report:

---- Minecraft Crash Report ----
// This is a token for 1 free hug. Redeem at your nearest Mojangsta: [~~HUG~~]

Time: 6/21/17 2:27 PM
Description: Updating screen events

com.eclipsesource.json.ParseException: Expected value at 1:0
    at com.eclipsesource.json.JsonParser.error(JsonParser.java:371)
    at com.eclipsesource.json.JsonParser.expected(JsonParser.java:364)
    at com.eclipsesource.json.JsonParser.readValue(JsonParser.java:97)
    at com.eclipsesource.json.JsonParser.parse(JsonParser.java:62)
    at com.eclipsesource.json.JsonValue.readFrom(JsonValue.java:105)
    at com.eclipsesource.json.JsonObject.readFrom(JsonObject.java:138)
    at info.mineshafter.datasources.MineshafterProfileAuthority.getProfile(MineshafterProfileAuthority.java:51)
    at info.mineshafter.intercept.ProfileHandler.getProfile(ProfileHandler.java:74)
    at info.mineshafter.intercept.ProfileHandler.handle(ProfileHandler.java:50)
    at info.mineshafter.hacks.URLConnectionAdapter.doRequest(URLConnectionAdapter.java:43)
    at info.mineshafter.hacks.URLConnectionAdapter.getInputStream(URLConnectionAdapter.java:60)
    at com.mojang.authlib.HttpAuthenticationService.performGetRequest(HttpAuthenticationService.java:130)
    at com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.makeRequest(YggdrasilAuthenticationService.java:66)
    at com.mojang.authlib.yggdrasil.YggdrasilMinecraftSessionService.fillGameProfile(YggdrasilMinecraftSessionService.java:180)
    at com.mojang.authlib.yggdrasil.YggdrasilMinecraftSessionService.fillProfileProperties(YggdrasilMinecraftSessionService.java:173)
    at net.minecraft.client.Minecraft.func_71371_a(Minecraft.java:2345)
    at net.minecraft.client.gui.GuiCreateWorld.func_146284_a(GuiCreateWorld.java:224)
    at net.minecraft.client.gui.GuiScreen.func_73864_a(GuiScreen.java:452)
    at net.minecraft.client.gui.GuiCreateWorld.func_73864_a(GuiCreateWorld.java:408)
    at net.minecraft.client.gui.GuiScreen.func_146274_d(GuiScreen.java:542)
    at net.minecraft.client.gui.GuiScreen.func_146269_k(GuiScreen.java:510)
    at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1695)
    at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:1056)
    at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:372)
    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:135)
    at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
    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 info.mineshafter.GameStarter.main(GameStarter.java:24)

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

-- Head --
Thread: Client thread
Stacktrace:
    at com.eclipsesource.json.JsonParser.error(JsonParser.java:371)
    at com.eclipsesource.json.JsonParser.expected(JsonParser.java:364)
    at com.eclipsesource.json.JsonParser.readValue(JsonParser.java:97)
    at com.eclipsesource.json.JsonParser.parse(JsonParser.java:62)
    at com.eclipsesource.json.JsonValue.readFrom(JsonValue.java:105)
    at com.eclipsesource.json.JsonObject.readFrom(JsonObject.java:138)
    at info.mineshafter.datasources.MineshafterProfileAuthority.getProfile(MineshafterProfileAuthority.java:51)
    at info.mineshafter.intercept.ProfileHandler.getProfile(ProfileHandler.java:74)
    at info.mineshafter.intercept.ProfileHandler.handle(ProfileHandler.java:50)
    at info.mineshafter.hacks.URLConnectionAdapter.doRequest(URLConnectionAdapter.java:43)
    at info.mineshafter.hacks.URLConnectionAdapter.getInputStream(URLConnectionAdapter.java:60)
    at com.mojang.authlib.HttpAuthenticationService.performGetRequest(HttpAuthenticationService.java:130)
    at com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.makeRequest(YggdrasilAuthenticationService.java:66)
    at com.mojang.authlib.yggdrasil.YggdrasilMinecraftSessionService.fillGameProfile(YggdrasilMinecraftSessionService.java:180)
    at com.mojang.authlib.yggdrasil.YggdrasilMinecraftSessionService.fillProfileProperties(YggdrasilMinecraftSessionService.java:173)
    at net.minecraft.client.Minecraft.func_71371_a(Minecraft.java:2345)
    at net.minecraft.client.gui.GuiCreateWorld.func_146284_a(GuiCreateWorld.java:224)
    at net.minecraft.client.gui.GuiScreen.func_73864_a(GuiScreen.java:452)
    at net.minecraft.client.gui.GuiCreateWorld.func_73864_a(GuiCreateWorld.java:408)
    at net.minecraft.client.gui.GuiScreen.func_146274_d(GuiScreen.java:542)
    at net.minecraft.client.gui.GuiScreen.func_146269_k(GuiScreen.java:510)

-- Affected screen --
Details:
    Screen name: net.minecraft.client.gui.GuiScreenWorking
Stacktrace:
    at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1695)
    at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:1056)
    at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:372)
    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:135)
    at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
    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 info.mineshafter.GameStarter.main(GameStarter.java:24)

-- System Details --
Details:
    Minecraft Version: 1.11.2
    Operating System: Windows 7 (x86) version 6.1
    Java Version: 1.8.0_131, Oracle Corporation
    Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
    Memory: 126255776 bytes (120 MB) / 411299840 bytes (392 MB) up to 523501568 bytes (499 MB)
    JVM Flags: 3 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M -Xmn128M
    IntCache: cache: 1, tcache: 1, allocated: 12, tallocated: 94
    FML: MCP 9.38 Powered by Forge 13.20.0.2228 5 mods loaded, 5 mods active
    States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
    UCHIJAAAA    minecraft{1.11.2} [Minecraft] (minecraft.jar) 
    UCHIJAAAA    mcp{9.19} [Minecraft Coder Pack] (minecraft.jar) 
    UCHIJAAAA    FML{8.0.99.99} [Forge Mod Loader] (forge-1.11.2-13.20.0.2228.jar) 
    UCHIJAAAA    forge{13.20.0.2228} [Minecraft Forge] (forge-1.11.2-13.20.0.2228.jar) 
    UCHIJAAAA    mercurius_updater{1.0} [mercurius_updater] (MercuriusUpdater-1.11.jar) 
    Loaded coremods (and transformers): 
    GL info: ' Vendor: 'NVIDIA Corporation' Version: '3.3.0' Renderer: 'GeForce 210/PCIe/SSE2'
    Launched Version: 1.11.2-forge1.11.2-13.20.0.2228
    LWJGL: 2.9.4
    OpenGL: GeForce 210/PCIe/SSE2 GL version 3.3.0, NVIDIA Corporation
    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: Yes
    Is Modded: Definitely; Client brand changed to 'fml,forge'
    Type: Client (map_client.txt)
    Resource Packs: 
    Current Language: English (US)
    Profiler Position: N/A (disabled)
    CPU: 2x Intel(R) Celeron(R) CPU E3400 @ 2.60GHz

Btw I have the latest version of java and windows 7 (32bit operating system). I also have no mods at all. Please help me.