help my modpack keeps crashing

[duck]

it says this 

---- Minecraft Crash Report ----

WARNING: coremods are present:
  RandomPatches (randompatches-1.12.2-1.12.0.1.jar)
  BedPatch (bedpatch-2.2-1.12.2.jar)
  CXLibraryCore (cxlibrary-1.12.1-1.6.1.jar)
  SplashAnimationCoremod (SplashAnimation-0.2.0.jar)
  ForgelinPlugin (Forgelin-1.8.2.jar)
  CTMCorePlugin (CTM-MC1.12.2-0.3.3.22.jar)
  HCASM (HammerCore-1.12.2-2.0.4.1.jar)
  MalisisCorePlugin (malisiscore-1.12.2-6.4.0.jar)
  llibrary (llibrary-core-1.0.10-1.12.2.jar)
  EnderCorePlugin (EnderCore-1.12.2-0.5.43.jar)
  Inventory Tweaks Coremod (InventoryTweaks-1.64-dev.jar)
  CorePlugin (SmoothFont-mc1.12.2-1.16.2.jar)
  Do not report to Forge! (If you haven't disabled the FoamFix coremod, try disabling it in the config! Note that this bit of text will still appear.) (foamfix-0.10.3-1.12.2.jar)
  LoadingPlugin (ResourceLoader-MC1.12.1-1.5.3.jar)
  LoadingPlugin (RandomThings-MC1.12.2-4.2.5.jar)
  IELoadingPlugin (ImmersiveEngineering-core-0.12-88.jar)
  EECore (ExpandedEquivalence-1.12.2-11b.jar)
  OpenModsCorePlugin (OpenModsLib-1.12.2-0.12.1.jar)
Contact their authors BEFORE contacting forge

// I let you down. Sorry :(

Time: 1/28/19 6:37 PM
Description: There was a severe problem during mod loading that has caused the game to fail

net.minecraftforge.fml.common.LoaderExceptionModCrash: Caught exception from Just Enough Items (jei)
Caused by: java.lang.OutOfMemoryError: GC overhead limit exceeded
    at mezz.jei.suffixtree.GeneralizedSuffixTree.testAndSplit(GeneralizedSuffixTree.java:216)
    at mezz.jei.suffixtree.GeneralizedSuffixTree.update(GeneralizedSuffixTree.java:313)
    at mezz.jei.suffixtree.GeneralizedSuffixTree.put(GeneralizedSuffixTree.java:163)
    at mezz.jei.ingredients.IngredientFilter.addIngredient(IngredientFilter.java:112)
    at mezz.jei.ingredients.IngredientFilter.addIngredients(IngredientFilter.java:103)
    at mezz.jei.startup.JeiStarter.start(JeiStarter.java:86)
    at mezz.jei.startup.ProxyCommonClient.loadComplete(ProxyCommonClient.java:136)
    at mezz.jei.JustEnoughItems.loadComplete(JustEnoughItems.java:55)
    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:624)
    at sun.reflect.GeneratedMethodAccessor2.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)