Pixelmon 1.12.2 crashing ticking player

[TheLion]

hello,

 

pixelmon is alway crashing without reasons. I dont understand it and i want to play with a friend.

 

here is the crachreport:

 

---- Minecraft Crash Report ----

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

// Hi. I'm Minecraft, and I'm a crashaholic.

Time: 6/15/20 9:04 AM
Description: Ticking player

java.lang.NoSuchMethodError: net.minecraftforge.fml.common.gameevent.PlayerEvent$ItemPickupEvent.getStack()Lnet/minecraft/item/ItemStack;
    at com.pixelmonmod.pixelmon.quests.listeners.ItemListeners.onPickupItem(ItemListeners.java:40)
    at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_80_ItemListeners_onPickupItem_ItemPickupEvent.invoke(.dynamic)
    at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90)
    at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:179)
    at net.minecraftforge.fml.common.FMLCommonHandler.firePlayerItemPickupEvent(FMLCommonHandler.java:588)
    at net.minecraft.entity.item.EntityItem.func_70100_b_(EntityItem.java:401)
    at net.minecraft.entity.player.EntityPlayer.func_71044_o(EntityPlayer.java:600)
    at net.minecraft.entity.player.EntityPlayer.func_70636_d(EntityPlayer.java:571)
    at net.minecraft.entity.EntityLivingBase.func_70071_h_(EntityLivingBase.java:2167)
    at net.minecraft.entity.player.EntityPlayer.func_70071_h_(EntityPlayer.java:234)
    at net.minecraft.entity.player.EntityPlayerMP.func_71127_g(EntityPlayerMP.java:382)
    at net.minecraft.network.NetHandlerPlayServer.func_73660_a(NetHandlerPlayServer.java:173)
    at net.minecraftforge.fml.common.network.handshake.NetworkDispatcher$1.func_73660_a(NetworkDispatcher.java:209)
    at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:285)
    at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:179)
    at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:788)
    at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:666)
    at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:279)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:524)
    at java.lang.Thread.run(Thread.java:745)

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

-- Head --
Thread: Server thread
Stacktrace:
    at com.pixelmonmod.pixelmon.quests.listeners.ItemListeners.onPickupItem(ItemListeners.java:40)
    at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_80_ItemListeners_onPickupItem_ItemPickupEvent.invoke(.dynamic)
    at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90)
    at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:179)
    at net.minecraftforge.fml.common.FMLCommonHandler.firePlayerItemPickupEvent(FMLCommonHandler.java:588)
    at net.minecraft.entity.item.EntityItem.func_70100_b_(EntityItem.java:401)
    at net.minecraft.entity.player.EntityPlayer.func_71044_o(EntityPlayer.java:600)
    at net.minecraft.entity.player.EntityPlayer.func_70636_d(EntityPlayer.java:571)
    at net.minecraft.entity.EntityLivingBase.func_70071_h_(EntityLivingBase.java:2167)
    at net.minecraft.entity.player.EntityPlayer.func_70071_h_(EntityPlayer.java:234)

-- Player being ticked --
Details:
    Entity Type: null (net.minecraft.entity.player.EntityPlayerMP)
    Entity ID: 922
    Entity Name: TheLionKingHD
    Entity's Exact location: -70.55, 109.00, -282.98
    Entity's Block location: World: (-71,109,-283), Chunk: (at 9,6,5 in -5,-18; contains blocks -80,0,-288 to -65,255,-273), Region: (-1,-1; contains chunks -32,-32 to -1,-1, blocks -512,0,-512 to -1,255,-1)
    Entity's Momentum: 0.00, -0.08, 0.00
    Entity's Passengers: []
    Entity's Vehicle: ~~ERROR~~ NullPointerException: null
Stacktrace:
    at net.minecraft.entity.player.EntityPlayerMP.func_71127_g(EntityPlayerMP.java:382)
    at net.minecraft.network.NetHandlerPlayServer.func_73660_a(NetHandlerPlayServer.java:173)
    at net.minecraftforge.fml.common.network.handshake.NetworkDispatcher$1.func_73660_a(NetworkDispatcher.java:209)
    at net.minecraft.network.NetworkManager.func_74428_b(NetworkManager.java:285)

-- Ticking connection --
Details:
    Connection: net.minecraft.network.NetworkManager@2a419a74
Stacktrace:
    at net.minecraft.network.NetworkSystem.func_151269_c(NetworkSystem.java:179)
    at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:788)
    at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:666)
    at net.minecraft.server.integrated.IntegratedServer.func_71217_p(IntegratedServer.java:279)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:524)
    at java.lang.Thread.run(Thread.java:745)

-- 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: 685602656 bytes (653 MB) / 1577058304 bytes (1504 MB) up to 4294967296 bytes (4096 MB)
    JVM Flags: 8 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx4G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
    IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
    FML: MCP 9.42 Powered by Forge 14.23.0.2529 Optifine OptiFine_1.12.2_HD_U_F5 6 mods loaded, 6 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                                |
    |:--------- |:----------------- |:------------ |:----------------------------------- |:---------------------------------------- |
    | UCHIJAAAA | minecraft         | 1.12.2       | minecraft.jar                       | None                                     |
    | UCHIJAAAA | mcp               | 9.42         | minecraft.jar                       | None                                     |
    | UCHIJAAAA | FML               | 8.0.99.99    | forge-1.12.2-14.23.0.2529.jar       | e3c3d50c7c986df74c645c0ac54639741c90a557 |
    | UCHIJAAAA | forge             | 14.23.0.2529 | forge-1.12.2-14.23.0.2529.jar       | e3c3d50c7c986df74c645c0ac54639741c90a557 |
    | UCHIJAAAA | mercurius_updater | 1.0          | MercuriusUpdater-1.12.2.jar         | None                                     |
    | UCHIJAAAA | pixelmon          | 7.3.1        | Pixelmon-1.12.2-7.3.1-universal.jar | None                                     |

    Loaded coremods (and transformers): 
    GL info: ~~ERROR~~ RuntimeException: No OpenGL context found in the current thread.
    Profiler Position: N/A (disabled)
    Player Count: 1 / 8; [EntityPlayerMP['TheLionKingHD'/922, l='Neue Welt', x=-70.55, y=109.00, z=-282.98]]
    Type: Integrated Server (map_client.txt)
    Is Modded: Definitely; Client brand changed to 'fml,forge'
    OptiFine Version: OptiFine_1.12.2_HD_U_F5
    OptiFine Build: 20191204-141934
    Render Distance Chunks: 12
    Mipmaps: 4
    Anisotropic Filtering: 1
    Antialiasing: 0
    Multitexture: false
    Shaders: null
    OpenGlVersion: 4.6.13560 Compatibility Profile Context 26.20.11028.1002
    OpenGlRenderer: AMD Radeon(TM) RX Vega 10 Graphics
    OpenGlVendor: ATI Technologies Inc.
    CpuCount: 8

[Novârch]

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