Site not connecting despite all my efforts

I keep hitting the " Error establishing a database connection " error with my sites.

Local Version : 2.4.3
macOS : Mojave Version 10.14
Error Log attached

local-by-flywheel.log (458.9 KB)

I have tried restarting my machine, local, the site and no luck.

The issue does also appear to be happening to other sites also

Sometimes when starting the site I get a 502 error and then I stop and start again an then I get the “Error establishing a database connection”