it wont let me start my game. it says exeption from redstone flux

---- Minecraft Crash Report ----

WARNING: coremods are present:
  llibrary (llibrary-core-1.0.11-1.12.2.jar)
  iceandfire (iceandfire-1.8.4.jar)
  ForgelinPlugin (Forgelin-1.8.4.jar)
Contact their authors BEFORE contacting forge

// Don't do that.

Time: 4/2/20 9:49 AM
Description: There was a severe problem during mod loading that has caused the game to fail

net.minecraftforge.fml.common.LoaderExceptionModCrash: Caught exception from Redstone Flux (redstoneflux)
Caused by: java.lang.RuntimeException: 
RedstoneFlux has detected that the following OLD API classes from CoFHLib are being repacked!
    cofh.api.energy.ItemEnergyContainer, loaded from: buildcraft-7.1.23.jar
    cofh.api.energy.EnergyStorage, loaded from: buildcraft-7.1.23.jar
    cofh.api.energy.TileEnergyHandler, loaded from: buildcraft-7.1.23.jar
    cofh.api.energy.IEnergyConnection, loaded from: buildcraft-7.1.23.jar
    cofh.api.energy.IEnergyProvider, loaded from: buildcraft-7.1.23.jar
    cofh.api.energy.IEnergyHandler, loaded from: buildcraft-7.1.23.jar
    cofh.api.energy.IEnergyStorage, loaded from: buildcraft-7.1.23.jar
    cofh.api.energy.IEnergyContainerItem, loaded from: buildcraft-7.1.23.jar
    cofh.api.energy.IEnergyReceiver, loaded from: buildcraft-7.1.23.jar

To prevent this crash, add "-Dcofh.rf.crashOnOldAPI=false" to your command line arguments.

    at cofh.redstoneflux.internal.OldAPIChecker.check(OldAPIChecker.java:64)
    at cofh.redstoneflux.RedstoneFlux.preInit(RedstoneFlux.java:18)
    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.minecraftforge.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:637)
    at sun.reflect.GeneratedMethodAccessor8.invoke(Unknown Source)
    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.preinitializeMods(Loader.java:629)
    at net.minecraftforge.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:252)
    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)

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

-- 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: 393944112 bytes (375 MB) / 1073741824 bytes (1024 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 14.23.5.2847 35 mods loaded, 35 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                                |
    |:----- |:------------------ |:------------ |:----------------------------------------- |:---------------------------------------- |
    | LCH   | minecraft          | 1.12.2       | minecraft.jar                             | None                                     |
    | LCH   | mcp                | 9.42         | minecraft.jar                             | None                                     |
    | LCH   | FML                | 8.0.99.99    | forge-1.12.2-14.23.5.2847.jar             | None                                     |
    | LCH   | forge              | 14.23.5.2847 | forge-1.12.2-14.23.5.2847.jar             | None                                     |
    | LCH   | baubles            | 1.5.2        | Baubles-1.12-1.5.2.jar                    | None                                     |
    | LCH   | bdlib              | 1.14.3.12    | bdlib-1.14.3.12-mc1.12.2.jar              | None                                     |
    | LCH   | buildinggadgets    | 2.7.4        | BuildingGadgets-2.7.4.jar                 | None                                     |
    | LCH   | clumps             | 3.1.2        | Clumps-3.1.2.jar                          | None                                     |
    | LCE   | redstoneflux       | 2.1.0        | RedstoneFlux-1.12-2.1.0.6-universal.jar   | 8a6abf2cb9e141b866580d369ba6548732eff25f |
    | LC    | cofhcore           | 4.6.3        | CoFHCore-1.12.2-4.6.3.27-universal.jar    | None                                     |
    | LC    | cofhworld          | 1.3.1        | CoFHWorld-1.12.2-1.3.1.7-universal.jar    | 8a6abf2cb9e141b866580d369ba6548732eff25f |
    | LC    | craftingstation    | @VERSION@    | craftingstation-0.1.7b.jar                | None                                     |
    | LC    | ebwizardry         | 4.2.7        | ElectroblobsWizardry-4.2.7-MC1.12.2.jar   | None                                     |
    | LC    | enchdesc           | 1.1.19       | EnchantmentDescriptions-1.12.2-1.1.19.jar | d476d1b22b218a10d845928d1665d45fce301b27 |
    | LC    | fastfurnace        | 1.3.1        | FastFurnace-1.12.2-1.3.1.jar              | None                                     |
    | LC    | jei                | 4.15.0.291   | jei_1.12.2-4.15.0.291.jar                 | None                                     |
    | LC    | forestry           | 5.8.2.409    | forestry_1.12.2-5.8.2.409.jar             | None                                     |
    | LC    | forgelin           | 1.8.4        | Forgelin-1.8.4.jar                        | None                                     |
    | LC    | gendustry          | 1.6.5.8      | gendustry-1.6.5.8-mc1.12.2.jar            | None                                     |
    | LC    | gendustryjei       | 1.0.2        | gendustryjei-1.0.2.jar                    | None                                     |
    | LC    | llibrary           | 1.7.19       | llibrary-1.7.19-1.12.2.jar                | b9f30a813bee3b9dd5652c460310cfcd54f6b7ec |
    | LC    | iceandfire         | 1.8.4        | iceandfire-1.8.4.jar                      | None                                     |
    | LC    | mcjtylib_ng        | 3.5.4        | mcjtylib-1.12-3.5.4.jar                   | None                                     |
    | LC    | megaloot           | 0.2.40       | megaloot-1.12.2-0.2.40.jar                | None                                     |
    | LC    | oreexcavation      | 1.4.143      | OreExcavation-1.4.143.jar                 | None                                     |
    | LC    | orespawn           | 3.3.1        | OreSpawn-1.12-3.3.1.172.jar               | d476d1b22b218a10d845928d1665d45fce301b27 |
    | LC    | refinedstorage     | 1.6.15       | refinedstorage-1.6.15.jar                 | 57893d5b90a7336e8c63fe1c1e1ce472c3d59578 |
    | LC    | rftools            | 7.72         | rftools-1.12-7.72.jar                     | None                                     |
    | LC    | rftoolsdim         | 5.71         | rftoolsdim-1.12-5.71.jar                  | None                                     |
    | LC    | silentlib          | 3.0.13       | SilentLib-1.12.2-3.0.13+167.jar           | None                                     |
    | LC    | silentgear         | 0.6.5        | SilentGear-1.12.2-0.6.7+76.jar            | None                                     |
    | LC    | beneath            | 1.6.0        | The Beneath-1.12.2-1.6.0.jar              | 220f10d3a93b3ff5fbaa7434cc629d863d6751b9 |
    | LC    | travellersbackpack | 1.0.20.20    | TravellersBackpack-1.12.2-1.0.20.20.jar   | None                                     |
    | LC    | waystones          | 4.1.0        | Waystones_1.12.2-4.1.0.jar                | None                                     |
    | LC    | xnet               | 1.8.2        | xnet-1.12-1.8.2.jar                       | None                                     |

    Loaded coremods (and transformers): 
llibrary (llibrary-core-1.0.11-1.12.2.jar)
  net.ilexiconn.llibrary.server.core.plugin.LLibraryTransformer
  net.ilexiconn.llibrary.server.core.patcher.LLibraryRuntimePatcher
iceandfire (iceandfire-1.8.4.jar)
  com.github.alexthe666.iceandfire.patcher.IceAndFireRuntimePatcher
ForgelinPlugin (Forgelin-1.8.4.jar)
  
    List of loaded APIs: 
        * Baubles|API (1.4.0.2) from Baubles-1.12-1.5.2.jar
        * cofhapi (2.5.0) from CoFHCore-1.12.2-4.6.3.27-universal.jar
        * ComputerCraft|API (1.79) from ComputerCraft1.79.jar
        * ComputerCraft|API|FileSystem (1.79) from ComputerCraft1.79.jar
        * ComputerCraft|API|Lua (1.79) from ComputerCraft1.79.jar
        * ComputerCraft|API|Media (1.79) from ComputerCraft1.79.jar
        * ComputerCraft|API|Peripheral (1.79) from ComputerCraft1.79.jar
        * ComputerCraft|API|Permissions (1.79) from ComputerCraft1.79.jar
        * ComputerCraft|API|Redstone (1.79) from ComputerCraft1.79.jar
        * ComputerCraft|API|Turtle (1.79) from ComputerCraft1.79.jar
        * ForestryAPI|apiculture (5.0.0) from forestry_1.12.2-5.8.2.409.jar
        * ForestryAPI|arboriculture (4.3.0) from forestry_1.12.2-5.8.2.409.jar
        * ForestryAPI|book (5.8.1) from forestry_1.12.2-5.8.2.409.jar
        * ForestryAPI|circuits (3.1.0) from forestry_1.12.2-5.8.2.409.jar
        * ForestryAPI|climate (5.0.0) from forestry_1.12.2-5.8.2.409.jar
        * ForestryAPI|core (5.7.0) from forestry_1.12.2-5.8.2.409.jar
        * ForestryAPI|farming (5.8.0) from forestry_1.12.2-5.8.2.409.jar
        * ForestryAPI|food (1.1.0) from forestry_1.12.2-5.8.2.409.jar
        * ForestryAPI|fuels (3.0.0) from forestry_1.12.2-5.8.2.409.jar
        * ForestryAPI|genetics (5.7.0) from forestry_1.12.2-5.8.2.409.jar
        * ForestryAPI|gui (5.8.0) from forestry_1.12.2-5.8.2.409.jar
        * ForestryAPI|hives (4.1.0) from forestry_1.12.2-5.8.2.409.jar
        * ForestryAPI|lepidopterology (1.4.0) from forestry_1.12.2-5.8.2.409.jar
        * ForestryAPI|mail (3.1.0) from forestry_1.12.2-5.8.2.409.jar
        * ForestryAPI|modules (5.7.0) from forestry_1.12.2-5.8.2.409.jar
        * ForestryAPI|multiblock (3.0.0) from forestry_1.12.2-5.8.2.409.jar
        * ForestryAPI|recipes (5.4.0) from forestry_1.12.2-5.8.2.409.jar
        * ForestryAPI|storage (5.0.0) from forestry_1.12.2-5.8.2.409.jar
        * ForestryAPI|world (2.1.0) from forestry_1.12.2-5.8.2.409.jar
        * gendustryAPI (2.3.0) from gendustry-1.6.5.8-mc1.12.2.jar
        * JustEnoughItemsAPI (4.13.0) from jei_1.12.2-4.15.0.291.jar
        * redstonefluxapi (2.1.0) from RedstoneFlux-1.12-2.1.0.6-universal.jar