I'm a new comer to facebook development. I'm establishing my second application.

My first application works fine and it didn't have anything within the Facebook Designers/Applications/Fundamental Info/Application Domain area - it's blank.

My new application doesn't work, and also the error (Object Base Domain Not Permitted) is pointing compared to that area (as well as the new application obviously). I ought to point out that Facebook Designers/Applications/Application on Facebook includes a good Canvas URL, Secure Canvas URL, and Canvas Page (there's a eco-friendly check mark).

QUESTION: if Application Domain area was blank in application_1, why can't it's blank for application_2?