Some times after you've uploaded a photo to the website it flips on its side or upside down... even though when you view the photo on your computer it's right side up.
This is a weird quirk that happens some times when a photo is taken on a smart phone. The data embedded in the photo tells the website that the side of the photo is 'up'.
The only way to solve this problem is open the photo on your computer and rotate 360 degrees (all the way around) so it is upright again, and then Save it. Now you can re-upload the photo, and it should be upright.
Note: not everyone will see the sideways photo depending on what browser and version they are using.