After you file

Has your 2018 return already been filed, and if so, was it efiled and accepted?  Or is the 2018 return still in preparation?

What does "can't retrieve" mean?   Does it mean you can't find it in that account, and it acts like it wants you to start one?  If so, then you likely have multiple accounts.   We can tell you how to troubleshoot to find the right one.

Or does "can't retrieve" mean that you find it OK, but there is some issue when you try to download/print the PDF?