NullReferenceException: Object reference not set to an instance of an object
Opsive.UltimateInventorySystem.ItemActions.OpenTechniquePanelItemAction.CanInvokeInternal (Opsive.UltimateInventorySystem.Core.DataStructures.ItemInfo itemInfo, Opsive.UltimateInventorySystem.ItemActions.ItemUser itemUser) (at Assets/OpenTechniquePanelItemAction.cs:45)
Opsive.UltimateInventorySystem.ItemActions.ItemAction.CanInvoke (Opsive.UltimateInventorySystem.Core.DataStructures.ItemInfo itemInfo, Opsive.UltimateInventorySystem.ItemActions.ItemUser itemUser) (at Assets/Opsive/UltimateInventorySystem/Scripts/ItemActions/ItemAction.cs:59)
Opsive.UltimateInventorySystem.ItemActions.ItemAction.InvokeAction (Opsive.UltimateInventorySystem.Core.DataStructures.ItemInfo itemInfo, Opsive.UltimateInventorySystem.ItemActions.ItemUser itemUser) (at Assets/Opsive/UltimateInventorySystem/Scripts/ItemActions/ItemAction.cs:95)
Opsive.UltimateInventorySystem.UI.Panels.ItemViewSlotContainers.ItemViewSlotsContainerItemActionBindingBase.InvokeActionInternal (System.Int32 itemSlotIndex, System.Int32 itemActionIndex) (at Assets/Opsive/UltimateInventorySystem/Scripts/UI/Panels/ItemViewSlotContainers/ItemViewSlotsContainerItemActionBindingBase.cs:400)
Opsive.UltimateInventorySystem.UI.Panels.ItemViewSlotContainers.ItemViewSlotsContainerItemActionBindingBase.UseAllItemActions (System.Int32 itemSlotIndex) (at Assets/Opsive/UltimateInventorySystem/Scripts/UI/Panels/ItemViewSlotContainers/ItemViewSlotsContainerItemActionBindingBase.cs:301)
Opsive.UltimateInventorySystem.UI.Panels.ItemViewSlotContainers.ItemViewSlotsContainerItemActionBindingBase.TriggerItemAction (Opsive.UltimateInventorySystem.UI.Item.ItemViewSlot itemViewSlot) (at Assets/Opsive/UltimateInventorySystem/Scripts/UI/Panels/ItemViewSlotContainers/ItemViewSlotsContainerItemActionBindingBase.cs:264)
Opsive.UltimateInventorySystem.UI.Panels.ItemViewSlotContainers.ItemViewSlotsContainerItemActionBindingBase.TriggerItemAction () (at Assets/Opsive/UltimateInventorySystem/Scripts/UI/Panels/ItemViewSlotContainers/ItemViewSlotsContainerItemActionBindingBase.cs:229)
Opsive.UltimateInventorySystem.UI.Panels.ItemViewSlotContainers.ItemViewSlotsContainerItemActionBindingBase.HandleItemClicked (Opsive.UltimateInventorySystem.UI.Item.ItemViewSlotEventData eventdata) (at Assets/Opsive/UltimateInventorySystem/Scripts/UI/Panels/ItemViewSlotContainers/ItemViewSlotsContainerItemActionBindingBase.cs:152)
Opsive.UltimateInventorySystem.UI.Item.ItemViewSlotsContainerBase+<>c__DisplayClass78_0.<Initialize>b__0 () (at Assets/Opsive/UltimateInventorySystem/Scripts/UI/Item/ItemViewSlotsContainerBase.cs:216)
Opsive.UltimateInventorySystem.UI.CompoundElements.ActionButton.Press () (at Assets/Opsive/UltimateInventorySystem/Scripts/UI/CompoundElements/ActionButton.cs:88)
Opsive.UltimateInventorySystem.UI.CompoundElements.ActionButton.OnPointerClick (UnityEngine.EventSystems.PointerEventData eventData) (at Assets/Opsive/UltimateInventorySystem/Scripts/UI/CompoundElements/ActionButton.cs:152)
Opsive.UltimateInventorySystem.UI.Item.ItemViewSlot.OnPointerClick (UnityEngine.EventSystems.PointerEventData eventData) (at Assets/Opsive/UltimateInventorySystem/Scripts/UI/Item/ItemViewSlot.cs:191)
UnityEngine.EventSystems.ExecuteEvents.Execute (UnityEngine.EventSystems.IPointerClickHandler handler, UnityEngine.EventSystems.BaseEventData eventData) (at Library/PackageCache/com.unity.ugui@1.0.0/Runtime/EventSystem/ExecuteEvents.cs:50)
UnityEngine.EventSystems.ExecuteEvents.Execute[T] (UnityEngine.GameObject target, UnityEngine.EventSystems.BaseEventData eventData, UnityEngine.EventSystems.ExecuteEvents+EventFunction`1[T1] functor) (at Library/PackageCache/com.unity.ugui@1.0.0/Runtime/EventSystem/ExecuteEvents.cs:262)
UnityEngine.EventSystems.EventSystem:Update() (at Library/PackageCache/com.unity.ugui@1.0.0/Runtime/EventSystem/EventSystem.cs:385)