Edit: It managed to fix itself.

Hello!
I was working today on a project, and I realized that I somehow without realizing it made the color dockers unusually long, but when I tried to drag it to make it normal sized (since I no longer could see layers) it wouldn't work. I restarted my computer and installed the latest update, but it didn't help. I switched to other layout styles to try to get layers to show again, but it still has the docker for layers, but does not show any layers. I tried to take the layer docker off and put it back on, but it didn't work. Right now I can't work since I was using layers, and I'm not really sure if there's a way to get passed that.
It looks like this: https://orig00.deviantart.net/0c86/f/2017/310/c/1/screenshot__66__by_pepperjay-dbsws1d.png

You collapsed the layer docker with the triangle in the titletbar of the layer docker. Uncollapse it by pressing it again.