Erroneous threat warning

I am trying to log into a reputable blog site, powerline.blog.  Recently I have been blocked saying there is  a threat  HTML: Scrip;t-inf (Susp)"  I can access powerlineblog.com from my Iphone without problem.  Can anyone reccomend on how to override this threat block.  Many thanks.  I am using a windows machine and my primpary browser is Goggle Crome.