I am unable to access Petfinder.com/admin and GoDaddy email site.

There very well may be an issue with the Hughes DNS database.
That is why Charles suggested changing where your system goes to get DNS addresses (from Hughes DNS servers to Googles DNS servers) in his #3 option posted below.

It may also be that your system is relying on a outdated address that is "saved" with your system.
My suggested steps posted above will wipe those out and make your system check for a new one.