drbrettwade-
Richard here from Webroot. I have gone through and fully scanned your website, and found nothing malicious or errors in general.
Regarding the user that received that message, please inform them to do a full scan on their computer through the Webroot client, as well as erasing the cache/temporary internet files through their browser. If the continue to receive errors, you can have him either contact us through Twitter (@WebrootSupport) or reach through the Webroot client and submit a claim ticket.
Please let me know if any of this helps.
Richard @ Webroot