Not sure if this bug has already been reported, but in a brief search I didn’t find it.
When I am not logged in, and I view a user page such as that of a bot, where one of the games being played is in private mode, I get this big error message “Not allowed to access this game” immediately upon viewing the bot page. This seems a somewhat confusing user experience. The problem only seems to occur when I am not logged in. For example attached is a screenshot of when I try to load the page for RoyalLeela while not logged in (at a time when presumably at least one of the games is private) 
thank you for bringing that to attention.