Sometimes the links from my gmail account work. But, often I get a message that "You are not authorized to view this page/"

Often, when I click on the link in notifications that I receive in my gmail account, the link is a dead end. I get a message that I am not authorized to see that page. I use Google Chrome as my browser. It seems to happen on the notifications that someone commented on awards that I received. The latest one was from followers commenting on "You received five awards on five images".
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