We suffered multiple outages tonight and as near as we can tell it was due to ours host's being absolute morons.
After reporting the first outage, of the DB server, they came back 10 minutes after the problem went away with 'we cant find any thing wrong'.
Then the webserver went down and they came back with;
"Upon further checking, the container stopped working and it appears that it has been disabled unintentionally. We restarted the server it is now fine and working. "
I think it's seriously past time to begin looking for a new host.