ANGULAR JS - Fix issue with recently developed Web site

Need Angular JS expert to investigate why my back-end database for a recently developed site has disappeared and future proof this against happening again. A bit of background, I am a one person busin Need Angular JS expert to investigate why my back-end database for a recently developed site has disappeared and future proof this against happening again. A bit of background, I am a one person business at this stage so there is no tech team and I will need advice as to how to back up and protect the database. The site is hoste...