Stardew MP/Beta bug

Message: De objectverwijzing is niet op een exemplaar van een object ingesteld. (object-reference-not-set-to-an-instance-of-an-object-error)
InnerException:
Stack Trace:    bij StardewValley.Object.actionWhenPurchased() in C:\Users\gitlab-runner\gitlab-runner\builds\5c0f9387\0\chucklefish\stardewvalley\Farmer\Farmer\Objects\Object.cs:regel 3483
   bij StardewValley.Menus.ShopMenu.tryToPurchaseItem(Item item, Item heldItem, Int32 numberToBuy, Int32 x, Int32 y, Int32 indexInForSaleList) in C:\Users\gitlab-runner\gitlab-runner\builds\5c0f9387\0\chucklefish\stardewvalley\Farmer\Farmer\Menus\ShopMenu.cs:regel 696
   bij StardewValley.Menus.ShopMenu.receiveLeftClick(Int32 x, Int32 y, Boolean playSound) in C:\Users\gitlab-runner\gitlab-runner\builds\5c0f9387\0\chucklefish\stardewvalley\Farmer\Farmer\Menus\ShopMenu.cs:regel 575
   bij StardewValley.Game1.updateActiveMenu(GameTime gameTime) in C:\Users\gitlab-runner\gitlab-runner\builds\5c0f9387\0\chucklefish\stardewvalley\Farmer\Farmer\Game1.cs:regel 2722
   bij StardewValley.Game1.Update(GameTime gameTime) in C:\Users\gitlab-runner\gitlab-runner\builds\5c0f9387\0\chucklefish\stardewvalley\Farmer\Farmer\Game1.cs:regel 2298
   bij Microsoft.Xna.Framework.Game.Tick()
   bij Microsoft.Xna.Framework.Game.HostIdle(Object sender, EventArgs e)
   bij Microsoft.Xna.Framework.GameHost.OnIdle()
   bij Microsoft.Xna.Framework.WindowsGameHost.RunOneFrame()
   bij Microsoft.Xna.Framework.WindowsGameHost.ApplicationIdle(Object sender, EventArgs e)
   bij System.Windows.Forms.Application.ThreadContext.System.Windows.Forms.UnsafeNativeMethods.IMsoComponent.FDoIdle(Int32 grfidlef)
   bij System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
   bij System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
   bij System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
   bij System.Windows.Forms.Application.Run(Form mainForm)
   bij Microsoft.Xna.Framework.WindowsGameHost.Run()
   bij Microsoft.Xna.Framework.Game.RunGame(Boolean useBlockingRun)
   bij StardewValley.Programa.Main(String[] args) in C:\Users\gitlab-runner\gitlab-runner\builds\5c0f9387\0\chucklefish\stardewvalley\Farmer\Farmer\Program.cs:regel 122