Hi there. I'm doing a WordPress site for a client on a test server I set up on my own domain, http://euphoricreality.com. My main domain is fine, as are all other subdomains.
However, the site I was working on, http://mimido.euphoricreality.com, suddenly, while I was uploading a simple jpg image to the theme directory, popped up with a 500 Internal Server Error. What's more, the entire subdomain directory disappeared. The WHOLE THING. it's simply NOT there anymore. I haven't done anything with plugins, haven't done any php editing in a few hours. Everything was working fine, and it literally happened out of nowhere. Please tell me how to fix this, or I just lost a lot of work.