Please help me find the documents that were finished but rejected for 2019.

What are you trying to do?   Why are you looking for the 2019 return---are you going to file it now?   In order to file it you will need to print, sign and mail it.   A 2019 return cannot be e-filed.    If you need to make any changes to it you have to use the CD/download software for 2019 to make changes.

https://ttlc.intuit.com/questions/2559403-how-do-i-finish-a-prior-year-return-that-i-started-in-turbotax-online

If you already paid for your online software you can ask customer support for a download of the desktop software.

They are available from 5 a.m. to 5 p.m. Pacific time Monday-Friday.

https://ttlc.intuit.com/questions/1899263-what-is-the-turbotax-phone-number

If you are getting a refund, there is no penalty for filing late.  If you owe tax due, then file and pay the amount due as shown on the Form 1040, but expect a bill later from the IRS for the penalty and interest you will owe.  Only the IRS will calculate this—TurboTax will not calculate it.

If you are looking for it to get your 2019 AGI in order to e-file 2020, it will not help you to e-file since that return was not processed and the IRS does not have a 2019 AGI on record for you.   Use zero instead.   Or you might just have to print sign and mail 2020.

When you mail a tax return, you need to attach any documents showing tax withheld, such as your W-2’s or any 1099’s.  Use a mailing service that will track it, such as UPS or certified mail so you will know the IRS/state received the return.

Federal and state returns must be in separate envelopes and they are mailed to different addresses.  Read the mailing instructions that print with your tax return carefully so you mail them to the right addresses.