Question, is anyone getting this on startup? if so what did you do and how did you do it?

What's your OS and configuration?

Maybe your executable got corrupted somehow. Have you tried reinstalling the game?

I'm still using windows 7

Well, that's probably the issue, 100%.

Have you considered switching to a modern and supported OS such as Windows 11?

I still think you can tweak and run it on Windows 7, however, you won't get GOG support because this port isn't supported on that operating system.

You can try other wrappers like Rebirth, dgVoodoo2, DDrawCompat.