Hey there @TechnoFilms! Welcome to the community! No need to apologize, everyone starts somewhere and we’re all learning something new every day! So it sounds like your world has world partition enabled and everything is currently unloaded.
So your scene probably looks like this, with all the things in your outliner showing as (unloaded). You’ll need to navigate to the world partition tab, select all of your tiles, then right click and click “Load selected cells”. You should be able to see everything is unloaded!
If your world partition tab isn’t open, you can open it from window->world partition the top.
The reason the level remains unloaded is so you can open larger scenes quickly and only show what you need to work on at a time.
Let me know how it goes!