The error message has to do with if a website doesn’t have an SSL, but my website does have an SSL, this happened about a month ago when I had to renew my SSL certificate. The website works sometimes and my internet which is xfinity blocks it, so your milage may vary if the website doesn’t work.
I have no idea why you see that error. Your SSL certificate is valid, it’s installed, and it seems to be working for everyone but you (your website and SSL are also working fine for me).
That’s a message from what I assume is a browser extension you have. InfinityFree can’t control that. You should probably contact the developers of that extension to get your site whitelisted.
The error you saw indicated you were not able to setup a HTTPS connection. So if you don’t use HTTPS, you don’t have that problem.
It could be possible that your internet provider is using some kind of “security” filter that may be interfering with your ability to connect to your site with us?
Could you please try to connect over a VPN and see if that helps? If it does, then please consider contacting your ISP about this, as they may be breaking your ability to see your site.