Verify the integrity of your game cache?
Restart the level via the map c#a# command?
It'd be interesting to decompile that map and get a good look at the entity setup though.
I suggest you follow the steps involved with making a Source 2013 mod, that's the best and easiest way to make a Source mod.This
I can't programFrom what I've seen you've created the basics of a mod. Scripting is a simple form of programming and you need that for doors and triggers and even your model QC files. What do you WANT to program exactly? I'm sure you just mean "you don't yet have the ability to program whatever you want." If you want to learn how to program, try. You will fail. Keep trying, you will succeed.
I can't make musicDo you own an instrument? Have you tried?
I can't make anything because I'm not a geniusFalse, also you don't need to be a genius to do anything. Do you think the person who built your house was a genius? No, but i'm sure he learned how to swing a hammer pretty well - he had a certain skillset for a certain application.
I'm not an artistI've seen your mod demo video. The atmosphere of the alien ship is pretty good. I would 100% call you an artist.
I'm not a good speakerIn English? If it's not your native language, that's fine. We can all understand what you're saying.
I'm not fastWhy do you even think that matters?