JS Error: Cannot call method 'getContent' of undefined


I installed the e-Newlsetter plugin but am not able to create a new newsletter because this error keeps popping up:

“Uncaught TypeError: Cannot call method ‘getContent’ of undefined”

Does anyone know why this would be happening?

My Info:

WP v3.3.1

e-Newsletter v1.2

No other plugins are active at this time. Brand new install.

Thank you in advance,