I'm testing on Windows Edge (Version 90.0.818.46 (Official build) (64-bit)
Using next game (arrows on the "pager" control at foot of table), I get this URL :
https://www.redhotpawn.com/chess-games/my-chess-games.php?a=1&ismanageview=0&page=3
Which gives the expected result.
This sounds like a cookie related issue. (As you mentioned the blog closing issue too.)
Can you try clearing all site cookies? You will need to log in again.