Any link keeps taking me to the purchase page

Dear Forum, 

Any attempt to access the site (including when trying to download a referencing style) takes me to their product purchase page. No other page on the site can be accessed. 

Does anyone have any idea what’s happening here?

I’ve attached a pic of the ‘landing page’

Kind regards.

The web site is working again I think?  Missed it all, as I was on holiday! (thankfully).