Hmmm, I'll download LWTS and look into that this week.

You can always roll back to the prior version by visiting the GitHub and downloading a historical release from there.

Also if you post the last few lines of your log after the crash detailing the unhandled exception that would be fantastic.

2025-09-29 00:57:08.647 - Thread: 1 -> No definition 'MyObjectBuilder_CubeBlock/XL_PassageCorner'. Maybe a mistake in XML?
2025-09-29 00:57:08.647 - Thread: 1 -> No definition 'MyObjectBuilder_CubeBlock/XL_PassageCorner'. Maybe a mistake in XML?
2025-09-29 00:57:08.647 - Thread: 1 -> No definition 'MyObjectBuilder_CubeBlock/XL_PassageCorner'. Maybe a mistake in XML?
2025-09-29 00:57:08.647 - Thread: 1 -> No definition 'MyObjectBuilder_CubeBlock/XL_PassageCorner'. Maybe a mistake in XML?
2025-09-29 00:57:08.647 - Thread: 1 -> No definition 'MyObjectBuilder_CubeBlock/XL_PassageCorner'. Maybe a mistake in XML?
2025-09-29 00:57:08.647 - Thread: 1 -> No definition 'MyObjectBuilder_CubeBlock/XL_PassageCorner'. Maybe a mistake in XML?
2025-09-29 00:57:08.647 - Thread: 1 -> No definition 'MyObjectBuilder_CubeBlock/XL_PassageCorner'. Maybe a mistake in XML?
2025-09-29 00:57:08.647 - Thread: 1 -> No definition 'MyObjectBuilder_CubeBlock/XL_PassageCorner'. Maybe a mistake in XML?
2025-09-29 00:57:08.647 - Thread: 1 -> No definition 'MyObjectBuilder_CubeBlock/XL_PassageCorner'. Maybe a mistake in XML?
2025-09-29 00:57:08.647 - Thread: 1 -> No definition 'MyObjectBuilder_CubeBlock/XL_PassageCorner'. Maybe a mistake in XML?
2025-09-29 00:57:08.647 - Thread: 1 -> No definition 'MyObjectBuilder_CubeBlock/XL_PassageCorner'. Maybe a mistake in XML?
2025-09-29 00:57:08.647 - Thread: 1 -> No definition 'MyObjectBuilder_CubeBlock/XL_PassageCorner'. Maybe a mistake in XML?
2025-09-29 00:57:08.647 - Thread: 1 -> No definition 'MyObjectBuilder_CubeBlock/XL_PassageCorner'. Maybe a mistake in XML?
2025-09-29 00:57:08.647 - Thread: 1 -> No definition 'MyObjectBuilder_CubeBlock/XL_PassageCorner'. Maybe a mistake in XML?
2025-09-29 00:57:08.647 - Thread: 1 -> No definition 'MyObjectBuilder_CubeBlock/XL_PassageCorner'. Maybe a mistake in XML?
2025-09-29 00:57:08.647 - Thread: 1 -> No definition 'MyObjectBuilder_CubeBlock/XL_PassageCorner'. Maybe a mistake in XML?
2025-09-29 00:57:08.647 - Thread: 1 -> No definition 'MyObjectBuilder_CubeBlock/XL_PassageCorner'. Maybe a mistake in XML?
2025-09-29 00:57:08.647 - Thread: 1 -> No definition 'MyObjectBuilder_CubeBlock/XL_PassageCorner'. Maybe a mistake in XML?
2025-09-29 00:57:08.647 - Thread: 1 -> No definition 'MyObjectBuilder_CubeBlock/XL_PassageCorner'. Maybe a mistake in XML?
2025-09-29 00:57:08.647 - Thread: 1 -> No definition 'MyObjectBuilder_AdvancedDoor/LargeBlockSlideDoorDouble'. Maybe a mistake in XML?
2025-09-29 00:57:08.647 - Thread: 1 -> No definition 'MyObjectBuilder_AdvancedDoor/HatchDoorDouble'. Maybe a mistake in XML?
2025-09-29 00:57:08.901 - Thread: 1 -> Analytics ids for user ([007...151]): User = (cfb090a1-98d4-6201-5fa7-1d5ed3e0b1fe) Session = (f561c68a-299b-4984-ba1e-4a23583fda77).
2025-09-29 00:57:08.911 - Thread: 1 -> Sending event to ElasticSearch: WorldStart
2025-09-29 00:57:08.972 - Thread: 1 -> Session loaded
2025-09-29 00:57:08.972 - Thread: 1 -> RunLoadingAction - END
2025-09-29 00:57:08.973 - Thread: 1 -> MyGuiScreenGamePlay.LoadData - START
2025-09-29 00:57:08.973 - Thread: 1 -> MyGuiScreenGamePlay.LoadData - END
2025-09-29 00:57:08.974 - Thread: 1 -> MyGuiScreenGamePlay.LoadContent - START
2025-09-29 00:57:08.974 - Thread: 1 -> MyGuiScreenGamePlay MyGuiScreenBase.LoadContent
2025-09-29 00:57:08.974 - Thread: 1 -> MyGuiScreenGamePlay.LoadContent - END
2025-09-29 00:57:09.014 - Thread: 1 -> Updating continues.
2025-09-29 00:57:10.353 - Thread: 1 -> [LWTS]: RegisterClientsideCommands
2025-09-29 00:57:10.355 - Thread: 1 -> [LWTS]: -Registered chat command: help - CommandHelp
2025-09-29 00:57:10.355 - Thread: 1 -> [LWTS]: -Registered chat command: changelog - CommandChangelog
2025-09-29 00:57:10.355 - Thread: 1 -> [LWTS]: -Registered chat command: cl - CommandChangelog
2025-09-29 00:57:10.355 - Thread: 1 -> [LWTS]: -Registered chat command: wiki - CommandInfo
2025-09-29 00:57:10.355 - Thread: 1 -> [LWTS]: -Registered chat command: info - CommandInfo
2025-09-29 00:57:10.363 - Thread: 1 -> [LWTS]: LWTSCommands.ShowMessage: Running LWTS v6.6.2. Type "/lwts changelog" or "/lwts cl" in chat to open the mod's changelog page.
2025-09-29 00:57:10.363 - Thread: 1 -> [LWTS]: LWTSCommands.ShowMessage: Type [/lwts] in chat for help with the LWTS mod and commands.
2025-09-29 00:57:10.595 - Thread: 1 -> Exception: System.NullReferenceException: Object reference not set to an instance of an object.
at EliDangHUD.GridHelper.GetClusterType(IMySlimBlock block)
at EliDangHUD.GridHelper.InitializeLocalGridBlocks()
at EliDangHUD.GridHelper.InitializeLocalGrid()
at EliDangHUD.GridHelper.UpdateLocalGrid()
at EliDangHUD.CircleRenderer.UpdateAfterSimulation()
at Sandbox.Game.World.MySession.UpdateComponents()
at Sandbox.Game.World.MySession.Update(MyTimeSpan updateTime)
at Sandbox.MySandboxGame.Update()
at Sandbox.Engine.Platform.Game.UpdateInternal()
at Sandbox.Engine.Platform.Game.RunSingleFrame()
at Sandbox.Engine.Platform.FixedLoop.<>c__DisplayClass11_0.<Run>b__0()
at Sandbox.Engine.Platform.GenericLoop.Run(VoidAction tickCallback)
at Sandbox.Engine.Platform.Game.RunLoop()
at Sandbox.MySandboxGame.Run(Boolean customRenderLoop, Action disposeSplashScreen)
at SpaceEngineers.MyProgram.Main(String[] args)
2025-09-29 00:57:10.603 - Thread: 1 -> Exception occurred: System.NullReferenceException: Object reference not set to an instance of an object.
at EliDangHUD.GridHelper.GetClusterType(IMySlimBlock block)
at EliDangHUD.GridHelper.InitializeLocalGridBlocks()
at EliDangHUD.GridHelper.InitializeLocalGrid()
at EliDangHUD.GridHelper.UpdateLocalGrid()
at EliDangHUD.CircleRenderer.UpdateAfterSimulation()
at Sandbox.Game.World.MySession.UpdateComponents()
at Sandbox.Game.World.MySession.Update(MyTimeSpan updateTime)
at Sandbox.MySandboxGame.Update()
at Sandbox.Engine.Platform.Game.UpdateInternal()
at Sandbox.Engine.Platform.Game.RunSingleFrame()
at Sandbox.Engine.Platform.FixedLoop.<>c__DisplayClass11_0.<Run>b__0()
at Sandbox.Engine.Platform.GenericLoop.Run(VoidAction tickCallback)
at Sandbox.Engine.Platform.Game.RunLoop()
at Sandbox.MySandboxGame.Run(Boolean customRenderLoop, Action disposeSplashScreen)
at SpaceEngineers.MyProgram.Main(String[] args)
at Pulsar.Legacy.Program.SetupGame(String[] args)
at Pulsar.Legacy.Program.Main(String[] args)
2025-09-29 00:57:10.604 - Thread: 1 -> Showing message
2025-09-29 00:57:10.605 - Thread: 1 -> MyInitializer.OnCrash
2025-09-29 00:57:10.605 - Thread: 1 -> var exception = System.NullReferenceException: Object reference not set to an instance of an object.
at EliDangHUD.GridHelper.GetClusterType(IMySlimBlock block)
at EliDangHUD.GridHelper.InitializeLocalGridBlocks()
at EliDangHUD.GridHelper.InitializeLocalGrid()
at EliDangHUD.GridHelper.UpdateLocalGrid()
at EliDangHUD.CircleRenderer.UpdateAfterSimulation()
at Sandbox.Game.World.MySession.UpdateComponents()
at Sandbox.Game.World.MySession.Update(MyTimeSpan updateTime)
at Sandbox.MySandboxGame.Update()
at Sandbox.Engine.Platform.Game.UpdateInternal()
at Sandbox.Engine.Platform.Game.RunSingleFrame()
at Sandbox.Engine.Platform.FixedLoop.<>c__DisplayClass11_0.<Run>b__0()
at Sandbox.Engine.Platform.GenericLoop.Run(VoidAction tickCallback)
at Sandbox.Engine.Platform.Game.RunLoop()
at Sandbox.MySandboxGame.Run(Boolean customRenderLoop, Action disposeSplashScreen)
at SpaceEngineers.MyProgram.Main(String[] args)
at Pulsar.Legacy.Program.SetupGame(String[] args)
at Pulsar.Legacy.Program.Main(String[] args)
2025-09-29 00:57:10.631 - Thread: 1 ->
================================== CRASH INFO ==================================
AppVersion: 01_207_022
GameName: Space Engineers
IsOutOfMemory: False
IsGPU: False
IsNative: False
IsTask: False
IsExperimental: True
ProcessRunTime: 71
PCUCount: 52993
IsHang: False
GCMemory: 3933
GCMemoryAllocated: 3933
HWAvailableMemory: 15361
ProcessPrivateMemory: 8652
AnalyticId: SE
================================== OFNI HSARC ==================================

2025-09-29 00:57:10.631 - Thread: 1 -> Log Closed

there is much more than this i mean a lot of lines mention ""'MyObjectBuilder_CubeBlock/XL_PassageCorner'. Maybe a mistake in XML?
2025-09-29 00:57:08.647 - Thread: 1 -> No definition""

and i tried the thing with github and works fine right now i did not uninstall any mod and works perfect, but the mod is a local one and can't play with friends online you know any way to make it online?

This is a bug with the GetClusterType() logic I added which is for identifying block types, including scanning block descriptions for keywords to class things as PDC, laser, missile, jumpdrive, etc. It's not related to the LWTS mod at all thankfully.

I'm going to try and harden this method. I suspect it occurs when certain blocks don't have a .FatBlock or perhaps don't have a blockdefinition in the definition manager which might be related to those XML errors you see. I'll see about posting an update tonight. Thanks so much for the log! It is very helpful and coincides with another user having a crash.

I believe I have corrected this now, hopefully you can confirm

Works perfect now man thank you.