Go to the upper right and click on Forms.
Then in the left side of the screen, you will see K-1 for Form 1041 and perhaps the worksheet for the K-1 also.
They should have a red "!" just to the left of them.
Open the K-1 first and then in the lower border of the screen, click on: Delete Form" and the other should also disappear.
If not, do same with the worksheet.
Then you will be able to e-file.
This area may have accidentally got started.