1.12.2 minecraft forge not opening worlds

[---MASTER---]

when I try to load any world it says The game crashed whilst starting integrated server
Error: java.lang.NoClassDefFoundError: micdoodle8/mods/galacticraft/core/entities/player/GCEntityPlayerMP this is the error 

---- Minecraft Crash Report ----

WARNING: coremods are present:
  MicdoodlePlugin (MicdoodleCore-1.12.2-4.0.1.181.jar)
  IELoadingPlugin (ImmersiveEngineering-core-0.12-88.jar)
Contact their authors BEFORE contacting forge

// You're mean.

Time: 5/6/19 3:22 PM
Description: Starting integrated server

java.lang.NoClassDefFoundError: micdoodle8/mods/galacticraft/core/entities/player/GCEntityPlayerMP
    at net.minecraft.server.integrated.IntegratedServer.<init>(IntegratedServer.java:58)
    at net.minecraft.client.Minecraft.func_71371_a(Minecraft.java:2369)
    at net.minecraft.client.gui.GuiCreateWorld.func_146284_a(GuiCreateWorld.java:224)
    at net.minecraft.client.gui.GuiScreen.func_73864_a(GuiScreen.java:443)
    at net.minecraft.client.gui.GuiCreateWorld.func_73864_a(GuiCreateWorld.java:416)
    at net.minecraft.client.gui.GuiScreen.func_146274_d(GuiScreen.java:533)
    at net.minecraft.client.gui.GuiScreen.func_146269_k(GuiScreen.java:501)
    at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1759)
    at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:1098)
    at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:398)
    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:497)
    at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
    at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
Caused by: java.lang.ClassNotFoundException: micdoodle8.mods.galacticraft.core.entities.player.GCEntityPlayerMP
    at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
    ... 17 more
Caused by: java.lang.NullPointerException

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

-- Head --
Thread: Client thread
Stacktrace:
    at net.minecraft.server.integrated.IntegratedServer.<init>(IntegratedServer.java:58)

-- Starting integrated server --
Details:
    Level ID: New World---------
    Level Name: New World
Stacktrace:
    at net.minecraft.client.Minecraft.func_71371_a(Minecraft.java:2369)
    at net.minecraft.client.gui.GuiCreateWorld.func_146284_a(GuiCreateWorld.java:224)
    at net.minecraft.client.gui.GuiScreen.func_73864_a(GuiScreen.java:443)
    at net.minecraft.client.gui.GuiCreateWorld.func_73864_a(GuiCreateWorld.java:416)
    at net.minecraft.client.gui.GuiScreen.func_146274_d(GuiScreen.java:533)
    at net.minecraft.client.gui.GuiScreen.func_146269_k(GuiScreen.java:501)

-- Affected screen --
Details:
    Screen name: net.minecraft.client.gui.GuiMainMenu
Stacktrace:
    at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1759)
    at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:1098)
    at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:398)
    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:497)
    at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
    at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

-- System Details --
Details:
    Minecraft Version: 1.12.2
    Operating System: Windows 10 (amd64) version 10.0
    Java Version: 1.8.0_51, Oracle Corporation
    Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
    Memory: 1149811896 bytes (1096 MB) / 1979711488 bytes (1888 MB) up to 2147483648 bytes (2048 MB)
    JVM Flags: 8 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
    IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
    FML: MCP 9.42 Powered by Forge 14.23.5.2811 27 mods loaded, 27 mods active
    States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored

    | State  | ID                   | Version       | Source                                  | Signature                                |
    |:------ |:-------------------- |:------------- |:--------------------------------------- |:---------------------------------------- |
    | LCHIJA | minecraft            | 1.12.2        | minecraft.jar                           | None                                     |
    | LCHIJA | mcp                  | 9.42          | minecraft.jar                           | None                                     |
    | LCHIJA | FML                  | 8.0.99.99     | forge-1.12.2-14.23.5.2811.jar           | e3c3d50c7c986df74c645c0ac54639741c90a557 |
    | LCHIJA | forge                | 14.23.5.2811  | forge-1.12.2-14.23.5.2811.jar           | e3c3d50c7c986df74c645c0ac54639741c90a557 |
    | LCHIJA | micdoodlecore        |               | minecraft.jar                           | None                                     |
    | LCHIJA | actuallyadditions    | 1.12.2-r146   | ActuallyAdditions-1.12.2-r146.jar       | None                                     |
    | LCHIJA | jei                  | 4.13.1.225    | jei_1.12.2-4.13.1.225.jar               | None                                     |
    | LCHIJA | appleskin            | 1.0.9         | AppleSkin-mc1.12-1.0.9.jar              | None                                     |
    | LCHIJA | cdm                  | 0.4.1         | cdm-0.4.1-mc1.12.2.jar                  | None                                     |
    | LCHIJA | chiselsandbits       | 14.31         | chiselsandbits-14.31.jar                | None                                     |
    | LCHIJA | cyclicmagic          | 1.17.16       | Cyclic-1.12.2-1.17.16.jar               | 1bc8f8dbe770187a854cef35dad0ff40ba441bbe |
    | LCHIJA | explosions           | 1.0.0         | ExplosionsPlusPlusPlus_1.0.0_1.12.2.jar | None                                     |
    | LCHIJA | extrautils2          | 1.0           | extrautils2-1.12-1.9.8.jar              | None                                     |
    | LCHIJA | cfm                  | 6.2.0         | furniture-6.2.0-1.12.2.jar              | None                                     |
    | LCHIJA | ichunutil            | 7.2.1         | iChunUtil-1.12.2-7.2.1.jar              | 4db5c2bd1b556f252a5b8b54b256d381b2a0a6b8 |
    | LCHIJA | hats                 | 7.0.0         | Hats-1.12.2-7.0.2.jar                   | None                                     |
    | LCHIJA | heroicarmory         | 1.1.3         | heroicarmory-1.2.0.jar                  | None                                     |
    | LCHIJA | inventorypets        | 1.5.3.1       | inventorypets-1.12-1.5.3.1.jar          | None                                     |
    | LCHIJA | journeymap           | 1.12.2-5.5.3  | journeymap-1.12.2-5.5.3.jar             | None                                     |
    | LCHIJA | jeresources          | 0.8.5.27      | JustEnoughResources-1.12.2-0.8.5.27.jar | None                                     |
    | LCHIJA | mantle               | 1.12-1.3.3.42 | Mantle-1.12-1.3.3.42.jar                | None                                     |
    | LCHIJA | mocreatures          | 12.0.5        | Mo-Creatures-Mod-1.12.2.jar             | None                                     |
    | LCHIJA | morph                | 7.1.2         | Morph-1.12.2-7.1.2.jar                  | None                                     |
    | LCHIJA | portalgun            | 7.1.0         | PortalGun-1.12.2-7.1.0.jar              | 4db5c2bd1b556f252a5b8b54b256d381b2a0a6b8 |
    | LCHIJA | redstoneflux         | 2.1.0         | RedstoneFlux-1.12-2.1.0.6-universal.jar | 8a6abf2cb9e141b866580d369ba6548732eff25f |
    | LCHIJA | simplyjetpacks       | 2.2.11.64     | SimplyJetpacks2-1.12.2-2.2.11.64.jar    | None                                     |
    | LCHIJA | immersiveengineering | 0.12-88       | ImmersiveEngineering-0.12-88.jar        | 4cb49fcde3b43048c9889e0a3d083225da926334 |

    Loaded coremods (and transformers): 
MicdoodlePlugin (MicdoodleCore-1.12.2-4.0.1.181.jar)
  micdoodle8.mods.miccore.MicdoodleTransformer
IELoadingPlugin (ImmersiveEngineering-core-0.12-88.jar)
  blusunrize.immersiveengineering.common.asm.IEClassTransformer
    GL info: ' Vendor: 'Intel' Version: '4.5.0 - Build 24.20.100.6025' Renderer: 'Intel(R) HD Graphics 610'
    Launched Version: 1.12.2-forge1.12.2-14.23.5.2811
    LWJGL: 2.9.4
    OpenGL: Intel(R) HD Graphics 610 GL version 4.5.0 - Build 24.20.100.6025, Intel
    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: 4x Intel(R) Pentium(R) CPU 4415U @ 2.30GHz