Where did my articles go

Hi, I am using the theme DIVI. I have a page called Articles, and i was designing the layout and uploading the articles i was using when the wifi went out. I wasn’t scared at first as I updated or saved after every post. However, after 25 articles uploaded they all changed to the same article repeated 25 times. I started again twice but every time it deletes the articles so that i only have 5 posted. I’m beginning to get fed up with this site and its issues. Any suggestions on how to fix this?