The images on the homepages for my projects keep randomly deleting

Site URL: http://neeranharris.com

The images on the homepages for my projects keep randomly deleting. Is there a reason they are doing this? Any solutions?

site: neeranharris.com

pw: designlab

Do you have custom code making changes to your page? Some code can cause this to happen and on rare occasion it could be a server issue, but when that happens there are multiple reports here.