My images stopped showing up

Hi, I’ve been running a blog since the beggining of the year (www.lifeoftheadventurous.com) and this is the first time this happens to me.
I just realized my photos don’t show up properly. First, when the page is loeading all pictures seems to be ok and they load, but then, they disappear and all I see is the name of the photo.
I really don’t know what could it be… Please help ??