Access Denied to Gransnet Crosswords?

I live in Australia and my Gransnet.com link pops up in my email around 10:30pm each night.
I love to do the Crossword as a way of testing my brain as well as relaxing.
Last night and tonight I have had an error message when trying to get onto the Crossword that says “Access Denied Access Denied”.
Has anyone else experienced this? Is it a glitch on the website?
I am logged in, so I have no idea what has happened.

Thanks in advance for any replies.