The page you requested could not be found. Perhaps searching will help

Hi there,

I have just set up my website. I published a few pages fine. But today the pages get the error “The page you requested could not be found. Perhaps searching will help”.

The errors can be replicated here:

http://greenmantle.co.nz/room/the-silver-birch-suite/

and here

http://greenmantle.co.nz/room/the-pohutukawa-suite/

I have double checked my permalinks, and they match.

I have two plugins Hello Dolly, Akismet, both up to date.

Any ideas? I’m racking my brains here!