Website not loading

My website here: http://www.yourgimmick.comuv.com/wordpress/

For some reason it isn’t loading. I know it has nothing to do with my host because the main page is working: http://www.yourgimmick.comuv.com/

It says “Error establishing a database connection”

As well as a side site on the same host. http://www.yourgimmick.comuv.com/deliciouslibrary/

It has nothing to do with my instillation or coding because it’s been running for two years without any problems. This has happened a couple times before, but never more then a minute.

Is it wordpress? Should it work by tomorrow? Thanks.