the downtown zuzu mod can't repair the sawmill

[FabianLiu]

I have already purchased a license and paid 15,000 gold to the construction team on the same day, but they did not start the renovation. Later, when I tried to pay again, the Smapi showed a red number and deducted money without repairing the sawmill.
[game] An error occurred in the base update loop: InvalidOperationException: Sequence contains no matching element
at System.Linq.ThrowHelper.ThrowNoMatchException()
at System.Linq.Enumerable.First[TSource](IEnumerable`1 source, Func`2 predicate)
at Downtown_Zuzu.TileActionBuilder.BillSawmillFix() in main.cs:line 312
at Downtown_Zuzu.Menus.QuestionDialogue.EvaluateAnswer(Farmer csFarmer, String sAnswer) in C:\Users\harve\Documents\GitHub\Downtown-Zuzu\Code (SMAPI Element)\Downtown Zuzu\Downtown Zuzu\Menus\QuestionMenu.cs:line 64
at StardewValley.GameLocation.answerDialogue_PatchedBy<DaLion.Professions>(GameLocation this, Response answer)
at StardewValley.Menus.DialogueBox.receiveLeftClick(Int32 x, Int32 y, Boolean playSound)
at StardewValley.Game1.updateActiveMenu(GameTime gameTime)
at StardewValley.Game1._update(GameTime gameTime)
at StardewValley.Game1.Update(GameTime gameTime)
at StardewModdingAPI.Framework.SCore.OnPlayerInstanceUpdating(SGame instance, GameTime gameTime, Action runUpdate)