Database connection problem - kind of

This came on suddenly this afternoon. Everything had been going fine but when I tried to change a couple of server behaviors I started getting errors.

I then tried testing the DB connections and got this error:

HTTP Error Code 404 File Not Found. Here are some possible reasons for the problem:
1) There is no testing server running on the server machine.
2) The testing server specified for this site does not map to the http://72.167.232.227/aquadine/_mmServerScripts/MMHTTPDB.php.

There is a test server specified in the site settings and I can use the FTP in DW to view and upload files. I'm beginning to suspect that the script referred to in the error message has gotten corrupted somehow but wanted to check in before I did anything rash.

Some of the errors I was getting when I tried to access the server behaviors (from the login.php file) were about there not being the needed fields in the table so it was going to remove validations.