Day/Night Cycle Errors

Hey guys,

I’m new to the world of unreal engine and I decided to start creating my own game, following some youtube tutorials including this playlist. I got to part 7 at day/night cycle, where I have some errors in the day / night cycle and I don’t understand why, because I followed all the steps I saw in the video.
When I open the project I also have some warnings. And I use unreal engine 5.

This is the warning when I open the project.

And I think the warning comes from something here.

This is the second error.

and when I open it it sends me here.

And that’s what I see when I want to test the level, not how the guy in the video sees it.

I hope you can help me with these errors as soon as possible.
Thank you in advance.