I have
panda-xuc exact same problem to the letter to compare notes, my host for my gameserver is gameservers.com and all I did was hit the restart server button, it updated a slew of files. And database connection as well as the sourcemod automatic update checker was then no longer working for me.
I sent a ticket, and was responded "I do not understand can you take it in steps. " I was all over the place with my original ticked. Sent a response waiting again. But yes I also need help if anyone knows anything, I am not sure whats going on.
EDIT: Thanks guys, Problem at least with the database was my host changed the ip of the box. And as for the sourcemod update errors they took care of them. Not sure what they did. Thanks