This is a user to user forum.  No one can see your return to find out why you cannot e-file.  The following gives some reasons why you would not be able to e-file.

When a tax return can't be e-filed no matter what you do

Returns can't be e-filed if they:

• Contain overrides
• Have no taxable income
• Contain a W-2 where box 1 is blank or the box 16 amount is greater than the box 1 amount
• Contain IRS forms or schedules not on the accepted Forms and Schedules list
• Contain non-final forms
• Are for prior-year or amended returns

Many nonresident and part-year state returns cannot be e-filed either, due to circumstances beyond our control (we'll let you know if your non- or part-year resident return must be paper-filed).

In addition, certain returns keep getting rejected because somebody already claimed a dependent on the return or because of incorrect information in the IRS database. In these cases, there's really nothing you can do to "fix" your return so you can e-file it. For this year at least, you'll need to file a paper return instead.