Please do some initial investigation with your computer browser/settings. Other members of this site have not raised any issues about inaccessibility of links. If you still not able to resolve the issue, then you can post here the screenshot or error message which you are getting.
'Idhuvum Kadandhu Pogum "
Even this challenging situation would ease
Don't sweat the small stuff and it's all small stuff.
Were the links opened properly before? Is this issue occurring only in Indiastudychannel website or you face this problem in other websites too?