I filed my CA state tax return. The single member LLC form 568 is part of the return. But it was stamped with "DO NOT MAIL. E-FILE ONLY".

I filed my CA state persona tax return. I have a single member LLC. The form 568 is included in the return I downloaded. But the form was stamped with "DO NOT MAIL. E-FILE ONLY".

Does it mean the form 568 was e-filed? Or do I need to use Turbo Tax business to e-file it?

Thanks so much!