Health Contribution W-2 - Turbo Tax says I can't e-file ?

Was just finishing up my taxes using TurboTax but it says I can't e-file because of my W-2. I am receiving pension and the only W-2 I have is for a $500 contribution from my former employer for my health savings account. Can someone explain to me why I can't e-file just because there is no amount in Box 1 on the W-2 ?

 

Also, would it be illegal to just put $2 in Box 1 so I can e-file ?

 

Thank you