I'm having an error when i load my site

why i’m i seeing Error establishing a database connection whenever i load my site? http://single-liberties.000webhostapp.com/ i just got a domain name and i have connected it with 000webhost name servers but yet i get redirected to suspendeddomain

two different redirections, why?

Did you change your database credentials recently?

I just created the site and haven’t gone close to my database settings.

So can you re-install wordpress then?