I don't know why, but a lot of similar logs have been cropping up that say they're using Windows NT. What OS are you actually on?
Currently on Windows 10: Version 20H2 (OS Build 19042.685 - 64 bit)
Full Error Log from Stardew
Message: Cannot access a disposed object.
Object name: 'RenderTarget2D'.
InnerException:
Stack Trace: at Microsoft.Xna.Framework.Helpers.CheckDisposed(Object obj, IntPtr pComPtr)
at Microsoft.Xna.Framework.Graphics.GraphicsDevice.SetRenderTargets(RenderTargetBinding* pBindings, Int32 renderTargetCount)
at Microsoft.Xna.Framework.Graphics.GraphicsDevice.SetRenderTarget(RenderTarget2D renderTarget)
at StardewValley.Game1._draw(GameTime gameTime, RenderTarget2D target_screen) in C:\GitlabRunner\builds\Gq5qA5P4\0\ConcernedApe\stardewvalley\Farmer\Farmer\Game1.cs:line 18821
at StardewValley.Game1.Draw(GameTime gameTime) in C:\GitlabRunner\builds\Gq5qA5P4\0\ConcernedApe\stardewvalley\Farmer\Farmer\Game1.cs:line 18521
at StardewValley.GameRunner.Draw(GameTime gameTime) in C:\GitlabRunner\builds\Gq5qA5P4\0\ConcernedApe\stardewvalley\Farmer\Farmer\LocalMultiplayer.cs:line 571
at Microsoft.Xna.Framework.Game.DrawFrame()
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:\GitlabRunner\builds\Gq5qA5P4\0\ConcernedApe\stardewvalley\Farmer\Farmer\Program.cs:line 156
Game Version: 1.5.1
SDK Helper: SteamHelper
Game Language: en
GPU: NVIDIA GeForce GTX 1080
OS: Win32NT Microsoft Windows NT 6.2.9200.0
In-game Date: spring 1 Y1 Time of Day: 900
Game Location: Hospital