Do I need to mail my tax documents if I filed electronically? TurboTax prompted that I needed to mail documents after I filed electronically but there was a system error.

I filed electronically because I needed to pay taxes. Turbotax figured out how much I needed to pay and I could pay through them the federal and state taxes. When I filed, Turbotax prompted that I needed to print and mail documents as well, but then there was a system error and it wouldn't give me further information. Tax rturns have been accepted and payments already received. Do I still need to mail in my tax documents? And if so, where do I send them?