Can't see my gameobjects in scene view

I’m new to unity, I’ve been doing the roll-a-ball tutorial and when I got to the UI section of the tutorial suddenly everything disappeared on my scene view, but I can still see camera lines and positional markers, and I can still see everything on the game view.

I have tried restarting Unity and restarting my computer, but neither have fixed the problem.

I have checked the layers and I think everything is turned on. I don’t know how to fix, can anyone help? Screenshot below:

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Double click “Walls” or “Player” in the hierarchy and you’ll see them. You’re just zoomed out way too much.