The problem is that you moved the camera as the picture was being taken. It looks like this was indoors, so the shutter speed was probably slow. Most likely, the motion is due to your pressing the "button" to take the picture. Real cameras are designed for the shutter trigger action required by your finger and hand to cause minimal camera motion.
The way to fix this is to be more careful in the future. There are fancy algorithms that make assumptions about the camera motion and try to correct for it. Sometimes they work somewhat.
As a aside, no, this is not due to auto-HDR where the camera takes two pictures. If it were, you'd see two distinct images. What you actually see are two images with smudging between them. This is particularly evident at the bottom arrow. The camera was more still at the beginning and end of the exposure, and moved rapidly some time in the middle.