IndexOutOfRangeException every time I close out of mod settings.

[MegaPiggy]

IndexOutOfRangeException: Index was outside the bounds of the array.
Stacktrace: OptionsSelectorElement.GetSelectedOption () (at <2d33102988174911bcf077725dae0017>:0)
OWML.ModHelper.Menus.ModSelectorInput.get_Value () (at <bd214e93fe3345958a6d4eed7a9fb9ee>:0)
OWML.ModHelper.Menus.ModMenu.GetInputValue (System.String key) (at <bd214e93fe3345958a6d4eed7a9fb9ee>:0)
OWML.ModHelper.Menus.ModConfigMenu.OnSave () (at <bd214e93fe3345958a6d4eed7a9fb9ee>:0)
OWML.ModHelper.Menus.ModButtonBase.<.ctor>b__17_0 () (at <bd214e93fe3345958a6d4eed7a9fb9ee>:0)
UnityEngine.Events.InvokableCall.Invoke () (at <469e86e97fa2467ebffe49bbd6086325>:0)
UnityEngine.Events.UnityEvent.Invoke () (at <469e86e97fa2467ebffe49bbd6086325>:0)
UnityEngine.UI.Button.Press () (at <414efcd524b542f1bddd204f2129ec80>:0)
UnityEngine.UI.Button.OnPointerClick (UnityEngine.EventSystems.PointerEventData eventData) (at <414efcd524b542f1bddd204f2129ec80>:0)
UnityEngine.EventSystems.ExecuteEvents.Execute (UnityEngine.EventSystems.IPointerClickHandler handler, UnityEngine.EventSystems.BaseEventData eventData) (at <414efcd524b542f1bddd204f2129ec80>:0)
UnityEngine.EventSystems.ExecuteEvents.Execute[T] (UnityEngine.GameObject target, UnityEngine.EventSystems.BaseEventData eventData, UnityEngine.EventSystems.ExecuteEvents+EventFunction`1[T1] functor) (at <414efcd524b542f1bddd204f2129ec80>:0)
UnityEngine.EventSystems.ExecuteEvents:Execute(GameObject, BaseEventData, EventFunction`1)
OWMenuInputModule:ProcessPointerButton(ButtonState&, PointerEventData)
OWMenuInputModule:ProcessPointer(PointerModelExposed&)
OWMenuInputModule:ProcessMouseEvent()
OWMenuInputModule:Process()
UnityEngine.EventSystems.EventSystem:Update()