Why is the key to door script not working to me?

[Tomato Cat]

Wait,could it be fixed with launching Amnesia like an administrator becouse
I'm in a homegroup?

I don't think running it as an admin fixes it. There's this feature with some windows releases ("file virtualization", if I recall correctly) that has been known to cause issues with maps and such. I believe it's located under C:\Users\<user>\AppData\Local\VirtualStore.

Then again, I'm simply parroting what I've read from some other issues, this could be entirely unrelated to your specific problem.