Minecraft forge 1.14.4 1.15.1 & 1.12.2 crashing

[PiscesPie]

Hello, I wanted to play Minecraft forge but as soon as I launch any of my versions, it crashes, If you have any way, suggestion or anything to help it's appreciated, I am on java, and I have been playing for a few years. This is the crash report 

---- Minecraft Crash Report ----

WARNING: coremods are present:
Contact their authors BEFORE contacting forge

// This doesn't make any sense!

Time: 1/11/20 7:55 AM
Description: Initializing game

java.lang.NoClassDefFoundError: net/minecraftforge/api/distmarker/Dist
    at net.minecraftforge.fml.DistExecutor$1.<clinit>(DistExecutor.java:60)
    at net.minecraftforge.fml.DistExecutor.runForDist(DistExecutor.java:60)
    at biomesoplenty.core.BiomesOPlenty.<clinit>(BiomesOPlenty.java:31)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:348)
    at net.minecraftforge.fml.common.FMLModContainer.constructMod(FMLModContainer.java:526)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at com.google.common.eventbus.Subscriber.invokeSubscriberMethod(Subscriber.java:91)
    at com.google.common.eventbus.Subscriber$SynchronizedSubscriber.invokeSubscriberMethod(Subscriber.java:150)
    at com.google.common.eventbus.Subscriber$1.run(Subscriber.java:76)
    at com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:399)
    at com.google.common.eventbus.Subscriber.dispatchEvent(Subscriber.java:71)
    at com.google.common.eventbus.Dispatcher$PerThreadQueuedDispatcher.dispatch(Dispatcher.java:116)
    at com.google.common.eventbus.EventBus.post(EventBus.java:217)
    at net.minecraftforge.fml.common.LoadController.sendEventToModContainer(LoadController.java:219)
    at net.minecraftforge.fml.common.LoadController.propogateStateMessage(LoadController.java:197)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at com.google.common.eventbus.Subscriber.invokeSubscriberMethod(Subscriber.java:91)
    at com.google.common.eventbus.Subscriber$SynchronizedSubscriber.invokeSubscriberMethod(Subscriber.java:150)
    at com.google.common.eventbus.Subscriber$1.run(Subscriber.java:76)
    at com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:399)
    at com.google.common.eventbus.Subscriber.dispatchEvent(Subscriber.java:71)
    at com.google.common.eventbus.Dispatcher$PerThreadQueuedDispatcher.dispatch(Dispatcher.java:116)
    at com.google.common.eventbus.EventBus.post(EventBus.java:217)
    at net.minecraftforge.fml.common.LoadController.distributeStateMessage(LoadController.java:136)
    at net.minecraftforge.fml.common.Loader.loadMods(Loader.java:593)
    at net.minecraftforge.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:232)
    at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:467)
    at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:378)
    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: net.minecraftforge.api.distmarker.Dist
    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)
    ... 42 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.minecraftforge.fml.DistExecutor$1.<clinit>(DistExecutor.java:60)
    at net.minecraftforge.fml.DistExecutor.runForDist(DistExecutor.java:60)
    at biomesoplenty.core.BiomesOPlenty.<clinit>(BiomesOPlenty.java:31)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:348)
    at net.minecraftforge.fml.common.FMLModContainer.constructMod(FMLModContainer.java:526)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at com.google.common.eventbus.Subscriber.invokeSubscriberMethod(Subscriber.java:91)
    at com.google.common.eventbus.Subscriber$SynchronizedSubscriber.invokeSubscriberMethod(Subscriber.java:150)
    at com.google.common.eventbus.Subscriber$1.run(Subscriber.java:76)
    at com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:399)
    at com.google.common.eventbus.Subscriber.dispatchEvent(Subscriber.java:71)
    at com.google.common.eventbus.Dispatcher$PerThreadQueuedDispatcher.dispatch(Dispatcher.java:116)
    at com.google.common.eventbus.EventBus.post(EventBus.java:217)
    at net.minecraftforge.fml.common.LoadController.sendEventToModContainer(LoadController.java:219)
    at net.minecraftforge.fml.common.LoadController.propogateStateMessage(LoadController.java:197)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:497)
    at com.google.common.eventbus.Subscriber.invokeSubscriberMethod(Subscriber.java:91)
    at com.google.common.eventbus.Subscriber$SynchronizedSubscriber.invokeSubscriberMethod(Subscriber.java:150)
    at com.google.common.eventbus.Subscriber$1.run(Subscriber.java:76)
    at com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:399)
    at com.google.common.eventbus.Subscriber.dispatchEvent(Subscriber.java:71)
    at com.google.common.eventbus.Dispatcher$PerThreadQueuedDispatcher.dispatch(Dispatcher.java:116)
    at com.google.common.eventbus.EventBus.post(EventBus.java:217)
    at net.minecraftforge.fml.common.LoadController.distributeStateMessage(LoadController.java:136)
    at net.minecraftforge.fml.common.Loader.loadMods(Loader.java:593)
    at net.minecraftforge.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:232)
    at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:467)

-- Initialization --
Details:
Stacktrace:
    at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:378)
    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: 803906488 bytes (766 MB) / 1140850688 bytes (1088 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 14.23.5.2814 15 mods loaded, 15 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                                |
    |:----- |:-------------- |:------------ |:--------------------------------------------- |:---------------------------------------- |
    | LC    | minecraft      | 1.12.2       | minecraft.jar                                 | None                                     |
    | LC    | mcp            | 9.42         | minecraft.jar                                 | None                                     |
    | LC    | FML            | 8.0.99.99    | forge-1.12.2-14.23.5.2814.jar                 | e3c3d50c7c986df74c645c0ac54639741c90a557 |
    | LC    | forge          | 14.23.5.2814 | forge-1.12.2-14.23.5.2814.jar                 | e3c3d50c7c986df74c645c0ac54639741c90a557 |
    | LC    | betterslabsmod | 0.0.7        | Better+Slabs+Mod+[0.0.7].jar                  | None                                     |
    | LC    | bibliocraft    | 2.4.5        | BiblioCraft-Mod-1.12.2 (1).jar                | None                                     |
    | L     | biomesoplenty  | 7.0.1.2361   | BiomesOPlenty-1.12.2-7.0.1.2361-universal.jar | None                                     |
    | L     | blockcraftery  | 1.12.2-1.3.1 | blockcraftery-1.12.2-1.3.1.jar                | None                                     |
    | L     | chiselsandbits | 14.22        | Chisels-and-Bits-Mod-1.12.2 (2).jar           | None                                     |
    | L     | craftstudioapi | 1.0.0        | CraftStudio-API-1.12.2.jar                    | None                                     |
    | L     | fairylights    | 2.1.4        | Fairy-Lights-Mod-1.12.2.jar                   | None                                     |
    | L     | ichunutil      | 7.2.1        | iChun-Util-Mod-1.12.2.jar                     | None                                     |
    | L     | journeymap     | 1.12.2-5.5.2 | JourneyMap-Mod-1.12.2-Unlimited.jar           | None                                     |
    | L     | ptrmodellib    | 1.0.3        | PTRLib-1.0.3.jar                              | None                                     |
    | L     | mysticallib    | 1.12.2-1.4.0 | mysticallib-1.12.2-1.4.0.jar                  | None                                     |

    Loaded coremods (and transformers): 
    GL info: ' Vendor: 'Intel' Version: '4.5.0 - Build 23.20.16.4973' Renderer: 'Intel(R) HD Graphics 620'
    Launched Version: 1.12.2-forge1.12.2-14.23.5.2814
    LWJGL: 2.9.4
    OpenGL: Intel(R) HD Graphics 620 GL version 4.5.0 - Build 23.20.16.4973, 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: vanilla, file/CoterieCraft16xMC1.14rev16 (2).zip
    Current Language: English (US)
    Profiler Position: N/A (disabled)
    CPU: 4x Intel(R) Core(TM) i7-7500U CPU @ 2.70GHz

My mods are; better slabs mod, Biblio craft mod (1.12.2) BiomesOPlenty (1.12.2 & 1.14.4) Block-craftery (1.12.2) chisels and bits mod (1.12.2) Easy elytra takeoff (1.15.1) fairy lights mod (1.12.2) journey map mod (1.12.2) More ores in one (1.15.1) Mr crayfish's backpacked mod (1.15.1) nametags without anvils (1.15.1), Optifine 1.14.4, wetstone mod 1.15.1 and wrenchest mod 1.15.1
I have no experience whatsoever with codidng and do not want to delete anything because I'm shy and I don't want to accidentally break my game. Thank you for any help anyone gives me ❤️ 

[PiscesPie]

Thank you diesieben I'm not sure what "1.12.2 is no longer supported on this forum due to it's age." means, but if I did something wrong, I apologise. I am new to this website and posting stuff. I also don't know what "Mods are only compatible for a specific version of Minecraft, you cannot install 1.12.2 mods on 1.14.4 for example, let alone vice versa" means but I will see if the problem fixes if I uninstall some things for other versions. I will also uninstall some mods, keeping the ones I know are safe. I will also check StopModReposts, Thank you for your help. 

[Ugdhar]

8 hours ago, PiscesPie said:

I'm not sure what "1.12.2 is no longer supported on this forum due to it's age." means

It simply means that version is no longer supported by these forums, and threads asking for help will generally get closed, with a request the user update to a modern version (essentially the last 2 major versions, as of right now 1.14 and 1.15)

 

Info on the versions supported can be found at the top of the page by clicking the "New LTS system" link.