Steam Help! Tsw 5 Won't Open Anymore

Hello,
As of this evening, TSW 5 won't open. I received the message shown in the attachment. What does it mean?
Thanks for your help.

 

Try a file verification on Steam. Are you running any mods or engine.ini tweaks?

 

How do I check files on Steam?

 

Step 1: Click the button in the bottom right of this image:


Step 2: Click 'Properties'


Step 3: Go to 'Installed Files' and click 'Verify integrity of game files'


Step 4: Try opening TSW5 again and let us know if it works.

 

Hello aeronautic237,
Many thanks for your efficient assistance. Everything has been repaired as you predicted. I have now made a backup, since I saw this possibility in the windows you took me to.

 

No problem. However, I am not sure if Steam will back up your progress, since that is stored in Documents>My Games. I haven't used Steam's backup feature, so someone more knowledgeable will have to clarify this.

 

NEW PROBLEM!
The repair only worked once. After switching my PC off and on again, I get the message ‘update failed’ and I can't get into the game.

 

Oh this is interesting. Is this the same error as last time?

 

No, another message indicating only that the update has failed and an invitation to resume, which fails immediately.

 

Here is a screenshot.

 

After a reboot, it's working again!
I'll keep you posted on the next incident...

 

What a strange incident. I suspect this is an issue on Steam, rather than Train Sim World, but I have no idea.

Glad that it is fixed, though.