Hi Dana-
It looks like your site is using W3 Total Cache, a plugin that we develop, but I’m afraid we’re not a web-design shop. We create some of the software your web designer used for the site, but that’s all I can say for sure.
Here’s what I can say for sure is that your site resolves to a hostname for sucuri.net (a GoDaddy Company), and your WHOIS data indicates that GoDaddy is most likely your hosting provider. You may be able to determine what your next steps are by contacting GoDaddy’s support team.