Yesterday I was working on a project and everything was fine, but today there are only glitches. What to do?

I’m just learning and yesterday I was working on a simple mobile game (Android, 2D). Yesterday I saved everything and came in just now. I was immediately notified that there was an error for which I could not find a solution. So the first thing I noticed is that the background and scene buttons are transparent, you can’t put sprites on them. I have about 5 scenes, but none of them work correctly, and when creating a new scene, I cannot specify the item with a 2D scene. What to do? (Before creating the project, I selected the 2D kernel and selected Android in “Build settings”). I hope the screenshots are attached…

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