Turbo Tax is down anyone know how hefty the penalty will for filing after March 15th deadline?

Hello, 

 

Apparently it is a known issue going on where Turbo isn't able to transmit our returns right now. I am required to file by today's deadline which I just recently found out. Any recommendations on if I  should I file an extension? (Never done that before) I am worried about being penalized when I have all the sections complete, but unable to file due to the error within the system.

 

TY!