ReferenceError: ajaxurl is not defined

Hi Guys
i found a (possible) bug.
In the wp-admin login window JS from sell media is somehow broken

ReferenceError: ajaxurl is not defined
on row 10 in sell_media.js?ver=3.5.1

this error is killing any other JS on the page, for example social connect plugin just cannot work …

can somebody please check this? or, any idea how i can solve the conflict?

Thanks a lot, btw it is an amazing plugin ??

https://www.ads-software.com/extend/plugins/sell-media/