本編のロード中に下のエラーが出てロードが止まるのですが、どういう内容なのか教えていただけると助かります・・・

ArgumentOutOfRangeException: Argument is out of range.
Parameter name: index
at System.Collections.Generic.List`1<bool>.CheckIndex (int) <0x0006c>
at System.Collections.Generic.List`1<bool>.set_Item (int,bool) <0x00025>
at MoreAccessoriesKOI.ChaControl_SetAccessoryState_Patches.Postfix (ChaControl,int,bool) <0x00090>
at (wrapper dynamic-method) ChaControl.DMD<ChaControl..SetAccessoryState> (ChaControl,int,bool) <0x0006e>
at AccStateSync.AccStateSync/AccStateSyncController.SyncAllAccToggle () <0x00c73>
at AccStateSync.AccStateSync/AccStateSyncController.InitCurOutfitTriggerInfo (string) <0x0068c>
at AccStateSync.AccStateSync/AccStateSyncController.OnCoordinateChanged () <0x0010a>
at AccStateSync.AccStateSync/AccStateSyncController.<Start>b__11_0 (ChaFileDefine/CoordinateType) <0x0001c>
at UniRx.Observer/Subscribe`1<ChaFileDefine/CoordinateType>.OnNext (ChaFileDefine/CoordinateType) <0x0002c>
at UniRx.BehaviorSubject`1<ChaFileDefine/CoordinateType>.OnNext (ChaFileDefine/CoordinateType) <0x000a1>
at KKAPI.Chara.CharacterApi/<>c__DisplayClass14_0.<CreateOrAddBehaviours>b__0 (UniRx.Unit) <0x0017c>
at UniRx.Observer/Subscribe`1<UniRx.Unit>.OnNext (UniRx.Unit) <0x00035>
at UniRx.Subject`1<UniRx.Unit>.OnNext (UniRx.Unit) <0x00039>
at UniRx.Triggers.ObservableUpdateTrigger.Update () <0x00068>