URGENT - Website Down - Error establishing database connection

Hi All!

I was experiencing the following problem that I submitted a ticket for: https://premium.wpmudev.org/forums/topic/urgent-getting-random-404-error#post-1165913 and now I can't access the site! It's done and showing "error establishing a database connection". What should I do?! I am freaking out!

Please help me ASAP :slight_frown: