My hosting company decided to migrate my VPS to a new server with a new dedicated IP Address without advanced warning. This of course caused my multisite network to go completely down. Once I changed my dedicated IP Address in my CLoudflare DNS settings, my frontend site went back up. However, if I visit the login page for WordPress, I'm receiving the error: "Error Establishing Connection to Database."
I'm not sure what to do from here. How can I fix this? Please help, I have customers who are now becoming very upset with us.