Hi Meredith,
I've not used Network Solutions myself so don't have much useful to say there. If you want to try a support package - http://updraftplus.com/shop/get-support/ - and send me your login details then I can take a look, and refund you if it can't be done. Or you could ask Network Solutions for support. I'm out of ideas though. It is definitely a problem on their end; I was able to confirm that when I logged into WP earlier. The server just stops half-way through the page and throws out a random error, never quite at the same point.
David