Disappearing image

Hi, I am using WordPress 3.9.2 with Flatsome theme. I have apparel products selling and recently, I have had incidents of missing attributes ( don’t know why) and now, my images are disappearing. Not all of them but some of them. Sometimes one brand and the next is another brand. The images are not in the library no longer.

I asked my host to check and they tell me that the images are in the trash folder. Does anyone have any idea why? Nobody is moving them to the trash folders and it just happens