unable to edit prezi

Please help, this is the second major problem I’ve had with prezi! This morning I have tried several times to ‘edit’ my prezi but when I click ‘edit’ it moves to a blank page and nothing happens!! please help asap
Jade McDonald
reply at: mcdonalj@roehampton.ac.uk

the URL for my prezi is: http://prezi.com/w088avebujac/what-is…