Today I found suddenly that my shop was down. Whatever I did I got ERR_CONNECTION_REFUSED. I have no idea what was the problem. In the end I got the shop running again by rebooting.
I have no idea whether this was caused by 30Bees or not. But I hope someone can give me suggestions what did happen so that I can prevent a recurrence.
In my case I will check cpu and ram usage, and then check nginx access logs
Likely it was not caused by thirty bees, that is generally an issue with something on the server that causes that error.
I have today a “like as” Link to database cannot be established: SQLSTATE[HY000]  Connection refused.
I visited a SEO page and after the test, they have disconnected my database sever! Nice people!