Just tried stopping a site in Local and got this error about an error exporting the site’s database: http://b3.ms/qpknavJ48MBR
And now when I restart the site, it says there is an “Error establishing a database connection…” 
Let me know if anyone has a workaround. I haven’t moved any files or anything and everything was working great. I was just going to shut things down and restart my computer for a Mac OS update, so not sure what happened.