error when loading mod shown in console

[itachixhate]

[Warning: HarmonyX] AccessTools.DeclaredMethod: Could not find method for type Player and name UpdateMovementModifier and parameters
[Error : Unity Log] ArgumentException: Undefined target method for patch method static void EpicLoot.MagicItemEffects.RemoveSpeedPenalty_Player_UpdateMovementModifier_Patch::Postfix(Player __instance)
Stack trace:
HarmonyLib.PatchClassProcessor.PatchWithAttributes (System.Reflection.MethodBase& lastOriginal) (at <474744d65d8e460fa08cd5fd82b5d65f>:0)
HarmonyLib.PatchClassProcessor.Patch () (at <474744d65d8e460fa08cd5fd82b5d65f>:0)
Rethrow as HarmonyException: Patching exception in method null
HarmonyLib.PatchClassProcessor.ReportException (System.Exception exception, System.Reflection.MethodBase original) (at <474744d65d8e460fa08cd5fd82b5d65f>:0)
HarmonyLib.PatchClassProcessor.Patch () (at <474744d65d8e460fa08cd5fd82b5d65f>:0)
HarmonyLib.Harmony.b__11_0 (System.Type type) (at <474744d65d8e460fa08cd5fd82b5d65f>:0)
HarmonyLib.CollectionExtensions.Do[T] (System.Collections.Generic.IEnumerable1[T] sequence, System.Action1[T] action) (at <474744d65d8e460fa08cd5fd82b5d65f>:0)
HarmonyLib.Harmony.PatchAll (System.Reflection.Assembly assembly) (at <474744d65d8e460fa08cd5fd82b5d65f>:0)
HarmonyLib.Harmony.CreateAndPatchAll (System.Reflection.Assembly assembly, System.String harmonyInstanceId) (at <474744d65d8e460fa08cd5fd82b5d65f>:0)
EpicLoot.EpicLoot.Awake () (at <3ed535b3f4d04d9da80b73f8282a2e10>:0)
UnityEngine.GameObject:AddComponent(Type)
BepInEx.Bootstrap.Chainloader:Start()
UnityEngine.GameObject:.cctor()
PlatformTools.Common.SingletonMonoBehaviour`1:get_Instance()
PlatformTools.PlatformManagerInitializer:OnRuntimeMethodLoad()

sorry if this is a known issue , i could not find anything like it after about an hour of google fu

[TheGideon]

duplicate of #669