Thanks it randomly just started working again. I've also tried deleting cache and cookies as I still can't do anything with the dragons as it still says they are happy(but the one that has hatched is crying so not happy )

First it would not let me play with the dragon-said it is already happy but there is a storm cloud and lightening bolt above its head. Now wont let me login and says the session has expired and to login in from the home page(that's what I have been doing), I click on the home page link and try again...