Login with Ajax Error

I am using login with ajax plugin on my wordpress site for login as a modal. The plugin throws an error:

[Error] TypeError: 'undefined' is not an object (evaluating    'target.reveal')
    (anonymous function) (login-with-ajax.js, line 1)
   dispatch (jquery.js, line 4)
   handle (jquery.js, line 4)

I suspect it has something to do with jquery but any help or pointers would be greatly appreciated.

via Chebli Mohamed