---- Minecraft Crash Report ----

WARNING: coremods are present:
CreativePatchingLoader (CreativeCore-1.12.2.jar)
ItemPatchingLoader (ItemPhysic_Full_1.4.34_mc1.12.2.jar)
LittlePatchingLoader (LittleTiles-Mod-1.12.2.jar)
Contact their authors BEFORE contacting forge

// I let you down. Sorry :(

Time: 3/27/21 4:18 PM
Description: Initializing game

java.lang.NoClassDefFoundError: com/creativemd/creativecore/core/CreativeCoreClient
at com.creativemd.littletiles.client.LittleTilesClient.loadSide(LittleTilesClient.java:252)
at com.creativemd.littletiles.LittleTiles.registerItems(LittleTiles.java:265)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_5_LittleTiles_registerItems_Register.invoke(.dynamic)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90)
at net.minecraftforge.fml.common.eventhandler.EventBus$1.invoke(EventBus.java:144)
at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:182)
at net.minecraftforge.registries.GameData.fireRegistryEvents(GameData.java:850)
at net.minecraftforge.fml.common.Loader.preinitializeMods(Loader.java:630)
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)
Caused by: java.lang.ClassNotFoundException: com.creativemd.creativecore.core.CreativeCoreClient
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)
... 18 more
Caused by: java.lang.NullPointerException

how do i fix it???

Please download all of the mods from curseforge and make sure they are up to date.