This has happened to me before, and I literally had to change browsers for a week. When I switched back to chrome it was all ok again.
Do you mean the website? That happened to me 3 years ago. I just needed to whitelist the website through Avast (the anti virus that was blocking it).
You were on the forums a while ago now, so use whatever browser you used for now and maybe in a weeks time try to return to your previous browser, it happens a lot. Sorry for this inconvenience for you.
First I would you turn your Avast Antivirus off. Then see if it's safe, also another way could be through you switching to chrome.
Thank you for your thread on a recent issue. The issue has been resolved. This thread has been moved to the Help Archives.