Crashes on startup

Hiya,

If someone could offer some help to me, I'd be very grateful! I played Stardew Valley on my PC (from Steam) about 2 weeks ago and it connected fine. Then, starting last week, I cannot load a particular game (the one that I've spent the most time on). It will say "loading" for about a minute and then crash whenever I try to load a local game or a coop game. Please help.

I contacted ConcernedApe directly and I tried the following:
- deleting the startup_preferences document
- playing with headphones connected
- reinstalling the game on another computer
- reinstalling the SysWOW64 folder from CommonRedist

None of these worked.

Here is my last error log:
Message: Object reference not set to an instance of an object.
InnerException:
Stack Trace: at StardewValley.SaveGame.<getLoadEnumerator>d__56.MoveNext() in C:\Users\gitlab-runner\gitlab-runner\builds\5c0f9387\0\chucklefish\stardewvalley\Farmer\Farmer\SaveGame.cs:line 0
at StardewValley.Game1.UpdateTitleScreen(GameTime time) in C:\Users\gitlab-runner\gitlab-runner\builds\5c0f9387\0\chucklefish\stardewvalley\Farmer\Farmer\Game1.cs:line 3241
at StardewValley.Game1._update(GameTime gameTime) in C:\Users\gitlab-runner\gitlab-runner\builds\5c0f9387\0\chucklefish\stardewvalley\Farmer\Farmer\Game1.cs:line 2441
at StardewValley.Game1.Update(GameTime gameTime) in C:\Users\gitlab-runner\gitlab-runner\builds\5c0f9387\0\chucklefish\stardewvalley\Farmer\Farmer\Game1.cs:line 1860
at Microsoft.Xna.Framework.Game.Tick()
at Microsoft.Xna.Framework.Game.HostIdle(Object sender, EventArgs e)
at Microsoft.Xna.Framework.GameHost.OnIdle()
at Microsoft.Xna.Framework.WindowsGameHost.RunOneFrame()
at Microsoft.Xna.Framework.WindowsGameHost.ApplicationIdle(Object sender, EventArgs e)
at System.Windows.Forms.Application.ThreadContext.System.Windows.Forms.UnsafeNativeMethods.IMsoComponent.FDoIdle(Int32 grfidlef)
at System.Windows.Forms.Application.ComponentManager.System.Windows.Forms.UnsafeNativeMethods.IMsoComponentManager.FPushMessageLoop(IntPtr dwComponentID, Int32 reason, Int32 pvLoopData)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.ThreadContext.RunMessageLoop(Int32 reason, ApplicationContext context)
at System.Windows.Forms.Application.Run(Form mainForm)
at Microsoft.Xna.Framework.WindowsGameHost.Run()
at Microsoft.Xna.Framework.Game.RunGame(Boolean useBlockingRun)
at StardewValley.Program.Main(String[] args) in C:\Users\gitlab-runner\gitlab-runner\builds\5c0f9387\0\chucklefish\stardewvalley\Farmer\Farmer\Program.cs:line 146

I can upload any files that you need to see as well, just let me know.

Thanks so much for your help in advance!