You have an image here with a lot of red in it.
In principle, "auto white balance" uses the average colour of the image to decide what settings to use to make that average colour correspond to a neutral image (where neutral grays in the scene are neutral in the image). The calibration done by the camera maker uses samples of common images to calibrate this mechanism, if your image is very different from that calibration, the "auto white balance" will not give a good result.

To get better results for such images, you can use one of the other white balance settings, corresponding to the lighting you have (e.g. outdoors, you could use the 'daylight' or 'cloudy' settings, indoors is more difficult, as incandescent lamps are becoming rare, and the others have a more variable spectrum).

Most (?) cameras also have a custom setting, where you can take a picture of a neutral target to set a whitebalance corresponding to the light situation you have.

And as said in the comments, if you really want a perfect white balance (if such a thing exists), shoot raw and set the white balance in post-processing (and even then, you'll have to include a patch of neutral gray in your image).

Be aware that the best white balance in practice is not always the one you would get using one of these procedures. Typical exemple is a sunset, where the light is very warm (orange). A theoretically perfect white balance would kill all the rich colours which made you want to take the picture in the first place (it will look as if it was taken midday...)