EEv4 Error: Error establishing a database connection

When I go to my homepage I get the “Error establishing a database connection” error.

When I go to my homepage /wp-admin/ I get…

I checked the wp-config.php file and it seems to be correct.

Thoughts???

check your server first check cpu usage

Realize an attempt at humor here, but: “Thanks captain obvious.”

Actually it looks like the MySQL server/service is missing. Not sure how that would have happened, but with all this Docker mess, I’m not sure about EEv4 as a whole.