I can't open my Database

Would you help me?
Three days ago everything worked. Now my site works besides the Database. I have not access the Database even through your service. Settings do not work. I have not made any changes for a long time.

Error

SQL query: Edit Edit

SET lc_messages = ‘en_US’;

MySQL said: Documentation

#9001 - Max connect timeout reached while reaching hostgroup 1040 after 10188ms

There is a node down on our database network.
You can only wait it out.
There is no ETA till the issue is resolved.
Apologies.