Start with quick checks: confirm your site’s database details and see if the...

https://wiki-planet.win/index.php/Probation_vs_Parole_in_Queensland:_What_Is_the_Difference%3F

Start with quick checks: confirm your site’s database details and see if the server is down. If those look right, move on to deeper fixes, like repairing tables or checking recent changes. Contact your host if the database server stays unreachable.