I also got that message if I was on Chrome the other day.
Actually as I am typing this it has changed to RED saying Not Secure.
This is nothing to worry about here. The internet had some changes to secure websites that have user names. This site has user names and passwords but no personally identifiable information. All purchases here are secure and that is the only concern with the change that shows websites are "Not Secure"
Miss Veronika is working on this but for this website and the others it won't be fast or easy.
This is a warning that you have a user name and password here but the website has not updated the http to https. Any financial transactions are done securely (using https) so you have nothing to fear. There should be a "advanced" option to allow you to click through the warning. Someone stealing your password here will NOT have your personal or financial information. Again you have nothing to fear. As the website owner works through the different websites she owns, updates will happen and the site will eventually get the https. I am sorry you have had such a difficult time accessing the website. Miss Veronika is working on it.
I have no answer either. I come here daily and no warning from my virus protection. Have you run a scan lately? Maybe you picked up spyware.
I am posting a link in a PM so the other moderators see it and can comment/help.