Efile problem

I bought the efile from Intuit. And when trying to submit, it says:

Your Transmission Didn't Go Through.

TurboTax was unable to send your return to the Intuit Electronic Filing Center, for the following reason:

cancelled

Looks like we've had a technical hiccup.

Try e-filing again. If that doesn't work, you can print your return and file by mail.

 

Any idea why e-filing doesn't work?

Thanks.