Crash Report for 1.17.10

Trying to run Aether II Genesis of the Void modpack from the Twitch app for my own server. It instantly crashes when I boot it up. Here's the crash report. Someone know what's wrong?

---- Minecraft Crash Report ----
// I let you down. Sorry :(

Time: 3/31/20 1:42 PM
Description: Exception in server tick loop

cpw.mods.fml.common.LoaderException: java.lang.NoClassDefFoundError: net/minecraft/client/entity/EntityClientPlayerMP
    at cpw.mods.fml.common.LoadController.transition(LoadController.java:163)
    at cpw.mods.fml.common.Loader.initializeMods(Loader.java:739)
    at cpw.mods.fml.server.FMLServerHandler.finishServerLoading(FMLServerHandler.java:97)
    at cpw.mods.fml.common.FMLCommonHandler.onServerStarted(FMLCommonHandler.java:319)
    at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:210)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:387)
    at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685)
Caused by: java.lang.NoClassDefFoundError: net/minecraft/client/entity/EntityClientPlayerMP
    at yalter.mousetweaks.loaders.MouseTweaksForge.init(Unknown Source)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at cpw.mods.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:532)
    at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74)
    at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47)
    at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322)
    at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304)
    at com.google.common.eventbus.EventBus.post(EventBus.java:275)
    at cpw.mods.fml.common.LoadController.sendEventToModContainer(LoadController.java:212)
    at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:190)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74)
    at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47)
    at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322)
    at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304)
    at com.google.common.eventbus.EventBus.post(EventBus.java:275)
    at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:119)
    at cpw.mods.fml.common.Loader.initializeMods(Loader.java:737)
    ... 5 more
Caused by: java.lang.ClassNotFoundException: net.minecraft.client.entity.EntityClientPlayerMP
    at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    ... 32 more
Caused by: java.lang.NullPointerException
    at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182)
    ... 34 more

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

-- System Details --
Details:
    Minecraft Version: 1.7.10
    Operating System: Windows 10 (amd64) version 10.0
    Java Version: 1.8.0_241, Oracle Corporation
    Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
    Memory: 887156224 bytes (846 MB) / 1010302976 bytes (963 MB) up to 3795845120 bytes (3620 MB)
    JVM Flags: 0 total; 
    AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
    IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
    FML: MCP v9.05 FML v7.10.99.99 Minecraft Forge 10.13.4.1614 23 mods loaded, 23 mods active
    States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
    UCHI    mcp{9.05} [Minecraft Coder Pack] (minecraft.jar) 
    UCHI    FML{7.10.99.99} [Forge Mod Loader] (forge-1.7.10-10.13.4.1614-1.7.10-universal.jar) 
    UCHI    Forge{10.13.4.1614} [Minecraft Forge] (forge-1.7.10-10.13.4.1614-1.7.10-universal.jar) 
    UCHI    CodeChickenCore{1.0.7.47} [CodeChicken Core] (minecraft.jar) 
    UCHI    NotEnoughItems{1.0.5.120} [Not Enough Items] (NotEnoughItems-1.7.10-1.0.5.120-universal.jar) 
    UCHI    mod_ThreadedLighting{1.7.10-1.0} [Threaded Lighting] (minecraft.jar) 
    UCHI    gilded-games-util{1.7.10-1.2} [Gilded Games Utility] (gilded-games-util-1.7.10-1.9.jar) 
    UCHI    aether{1.7.10-1.6} [Aether II] (aether-1.7.10-1.6.jar) 
    UCHI    controlling{1.0.0} [Controlling] (Controlling-1.7.10-1.0.0.jar) 
    UCHI    MineTweaker3{3.0.13} [MineTweaker 3] (CraftTweaker-1.7.10-3.0.13.jar) 
    UCHI    inventorytweaks{1.59-dev-152-cf6e263} [Inventory Tweaks] (InventoryTweaks-1.59-dev-152.jar) 
    UCHI    journeymap{5.1.4p2} [JourneyMap] (journeymap-1.7.10-5.1.4p2-unlimited.jar) 
    UCHE    MouseTweaks{2.4.4} [Mouse Tweaks] (MouseTweaks-2.4.4-mc1.7.10.jar) 
    UCHI    NEIAddons{1.12.14.40} [NEI Addons] (neiaddons-1.12.14.40-mc1.7.10.jar) 
    UCHI    NEIAddons|Developer{1.12.14.40} [NEI Addons: Developer Tools] (neiaddons-1.12.14.40-mc1.7.10.jar) 
    UCHI    NEIAddons|AppEng{1.12.14.40} [NEI Addons: Applied Energistics 2] (neiaddons-1.12.14.40-mc1.7.10.jar) 
    UCHI    NEIAddons|Botany{1.12.14.40} [NEI Addons: Botany] (neiaddons-1.12.14.40-mc1.7.10.jar) 
    UCHI    NEIAddons|Forestry{1.12.14.40} [NEI Addons: Forestry] (neiaddons-1.12.14.40-mc1.7.10.jar) 
    UCHI    NEIAddons|CraftingTables{1.12.14.40} [NEI Addons: Crafting Tables] (neiaddons-1.12.14.40-mc1.7.10.jar) 
    UCHI    NEIAddons|ExNihilo{1.12.14.40} [NEI Addons: Ex Nihilo] (neiaddons-1.12.14.40-mc1.7.10.jar) 
    UCHI    Waila{1.5.10} [Waila] (Waila-1.5.10_1.7.10.jar) 
    UCHI    WailaHarvestability{1.1.6} [Waila Harvestability] (WailaHarvestability-mc1.7.10-1.1.6.jar) 
    UCHI    wawla{1.3.1} [What Are We Looking At] (Wawla-1.0.5.120.jar) 
    Profiler Position: N/A (disabled)
    Is Modded: Definitely; Server brand changed to 'fml,forge'
    Type: Dedicated Server (map_server.txt)