Stage is crooked, how to make straight?

[Gibble]

Hi, sorry in advance for the Noob question but my artwork, skelton and/or stage is crooked [see attached]. How do I make this straight again??

[neeters_guy]

It looks like the layer is off angle. Selected the Transform Layer tool and hit Reset angle in the menu bar. If it's the camera view angle that's off, hit the Home key.

[Greenlaw]

To add to Neeter's suggestions, check the Camera Roll. If the Roll value is anything other than 0-deg, hit the reset button. Also, check for any keyframes so you don't add motion when you do this.

[Daxel]

To add to Neeter's and Greenlaw's suggestions, if you hold shift while you rotate the layer, it will snap to straight angles making it easy to put it back.

[Gibble]

It was ...insert drumroll... "Roll camera " for the win!!! It was off by -2.9°
Thanks so much for the help @neeters_guy @Greenlaw and @Daxel
I figured it was something simple and felt bad for asking such a basic question but I appreciate your generous input. I guess I might have hit the [6] shortcut on the keyboard to trigger that? Or would have shift done that too? Anyhoo, all fixed now.
THANKS A BUNCH!!! Have a great weekend.