cannot open book with digital editions. Message says error when obtaining licence. Problem to communicate with licence server. E_LIC_ALREADY_FULFILLED_BY_ANOTHER_USER what can i do?

[reni3333]

i keep getting this message when trying to open a book i bought recently. error when obtaining licence. Problem to communicate with licence server. E_LIC_ALREADY_FULFILLED_BY_ANOTHER_USER

I have no idea what to do... someone please help!!!!! (my system is windows 7 64 bit and i do not use an e -reader)