I tried emailing this to info@gp.worldpuzzle.org as suggested on the Contact page, but it bounces, so I'm posting to the forum.
————
Hi folks.
When I just went to the Sudoku/Puzzle Grand Prix pages, I was blocked by Chrome with a message that your security certificate was invalid, and the connection was not safe. I was able to click through to get to the sites and now have a danger triangle and "Not Secure" message in the URL window. So maybe your certificates recently expired? Anyway, you might want to fix that.
Anyway, thanks for all the great puzzles! I always enjoy the Grand Prix contests! :)
Cheers,
David
Expired certificate
Dear David,
thanks a lot for your response, I have contacted the hosting and they have fixed it.
Best regards,
Karel (Admin)