With domain issues it’s hard to know exactly where the issue is coming from unless it’s a straight forward one like your A record is pointed to the wrong address. That would be a simple fix, but with this you want to rule out all options until you narrow down what the issue is exactly.
It looks like this is a location based error, but you should still contact GoDaddy just to rule out that there are any issues on their end. I tested your website on my laptop and phone, using Wifi and my data and I had no issues or warnings, but I’m located In Canada so the issue doesn’t seem to be affecting me.
After you speak with GoDaddy if there is no issue on their end I would contact your service provider to ask if there have been any outages or issues recently.