Object reference not set to an instance of an object.
   at MagicStorage.CraftingGUI.HoverResult(Int32 slot, Int32& hoverSlot)
   at MagicStorage.UISlotZone.Update(GameTime gameTime)
   at Terraria.UI.UIElement.Update(GameTime gameTime)
   at MagicStorage.CraftingGUI.Update(GameTime gameTime)
   at MagicStorage.MagicStorage.PostUpdateInput()
   at Terraria.ModLoader.ModHooks.PostUpdateInput()
   at Terraria.Main.DoUpdate_HandleInput()
   at Terraria.Main.DoUpdate(GameTime gameTime)
   at Terraria.Main.Update(GameTime gameTime)