I don’t understand… (steam deck issue)

I’ve been trying to mod lethal company on my steam deck for 5 hours and I have no idea what is going on or why it keeps saying this, but I’ve exhausted all other options but to ask. What’s funny is I was able to able to find the folder it was specifying and it DOES have Lethal Company in it, but it’s refusing to work and I’m at my limit with it