Crash Report: 

---- Minecraft Crash Report ----

WARNING: coremods are present:
  ShutdownPatcher (mcef-1.12.2-0.9-coremod.jar)
Contact their authors BEFORE contacting forge

// Would you like a cupcake?

Time: 5/12/19 6:23 PM
Description: Exception ticking world

java.lang.NoSuchMethodError: net.minecraft.entity.EntityLiving$SpawnPlacementType.canSpawnAt(Lnet/minecraft/world/World;Lnet/minecraft/util/math/BlockPos;)Z
    at net.minecraft.world.WorldEntitySpawner.func_180267_a(WorldEntitySpawner.java:226)
    at net.minecraft.world.WorldEntitySpawner.func_77192_a(WorldEntitySpawner.java:135)
    at net.minecraft.world.WorldServer.func_72835_b(WorldServer.java:203)
    at WorldServerOF.func_72835_b(WorldServerOF.java:37)
    at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:756)
    at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:668)
    at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:239)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526)
    at java.lang.Thread.run(Thread.java:745)

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

-- Head --
Thread: Server thread
Stacktrace:
    at net.minecraft.world.WorldEntitySpawner.func_180267_a(WorldEntitySpawner.java:226)
    at net.minecraft.world.WorldEntitySpawner.func_77192_a(WorldEntitySpawner.java:135)
    at net.minecraft.world.WorldServer.func_72835_b(WorldServer.java:203)
    at WorldServerOF.func_72835_b(WorldServerOF.java:37)

-- Affected level --
Details:
    Level name: New World
    All players: 1 total; [EntityPlayerMP['zandwermm'/13, l='New World', x=-151.50, y=4.00, z=695.50]]
    Chunk stats: ServerChunkCache: 1176 Drop: 292
    Level seed: 4421634220254123632
    Level generator: ID 01 - flat, ver 0. Features enabled: true
    Level generator options: 
    Level spawn location: World: (-148,4,699), Chunk: (at 12,0,11 in -10,43; contains blocks -160,0,688 to -145,255,703), Region: (-1,1; contains chunks -32,32 to -1,63, blocks -512,0,512 to -1,255,1023)
    Level time: 34 game time, 34 day time
    Level dimension: 0
    Level storage version: 0x04ABD - Anvil
    Level weather: Rain time: 117047 (now: false), thunder time: 124265 (now: false)
    Level game mode: Game mode: creative (ID 1). Hardcore: false. Cheats: true
Stacktrace:
    at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:756)
    at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:668)
    at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:239)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:526)
    at java.lang.Thread.run(Thread.java:745)

-- System Details --
Details:
    Minecraft Version: 1.12.2
    Operating System: Windows 7 (amd64) version 6.1
    Java Version: 1.8.0_51, Oracle Corporation
    Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
    Memory: 485711520 bytes (463 MB) / 1006632960 bytes (960 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 14.23.5.2823 Optifine OptiFine_1.12.2_HD_U_C5 9 mods loaded, 9 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-1.12.2-14.23.5.2823.jar         | e3c3d50c7c986df74c645c0ac54639741c90a557 |
    | LCHIJA | forge             | 14.23.5.2823 | forge-1.12.2-14.23.5.2823.jar         | e3c3d50c7c986df74c645c0ac54639741c90a557 |
    | LCHIJA | chiselsandbits    | 14.22        | Chisels-and-Bits-Mod-1.12.2.jar       | None                                     |
    | LCHIJA | flatcoloredblocks | mc1.12-6.6   | flatcoloredblocks-mc1.12-6.6.jar      | None                                     |
    | LCHIJA | mcef              | 0.9          | mcef-1.12.2-0.9.jar                   | None                                     |
    | LCHIJA | moreplayermodels  | 1.12.2       | More-Player-Models-Mod-1.12.2 (4).jar | None                                     |
    | LCHIJA | webdisplays       | 1.0          | webdisplays-1.12.2-1.0 (1).jar        | None                                     |

    Loaded coremods (and transformers): 
ShutdownPatcher (mcef-1.12.2-0.9-coremod.jar)
  net.montoyo.mcef.coremod.ShutdownPatcher
    GL info: ~~ERROR~~ RuntimeException: No OpenGL context found in the current thread.
    Profiler Position: N/A (disabled)
    Player Count: 1 / 8; [EntityPlayerMP['zandwermm'/13, l='New World', x=-151.50, y=4.00, z=695.50]]
    Type: Integrated Server (map_client.txt)
    Is Modded: Definitely; Client brand changed to 'fml,forge'

Remove shutdown patcher. Do you have OptiFine installed?

Yes

Your OptiFine version is extremely outdated. Update to the latest OptiFine version or remove OptiFine. Additionally OptiFine is only compatible with specific Forge versions, so make sure that you’re using compatible versions of Forge and OptiFine. Compatible OptiFine-Forge versions can be found in the changelog of OptiFine on the OptiFine download site