PSE 2019 Contact Sheet 2 error message - Mac

After completing a contact sheet in Contact Sheet 2, I returned to make another and just get an error message saying

• The operation could not be completed --  The file or directory could not be found.

•  Could not complete the Contact Sheet 2 command because of a program error.

I just purchased and loaded this program last night!  Have I messed up the program already??

Can anyone help?  I see a similar question for an earlier version, PSE 14, but I am afraid to try this because I would have hoped this bug had been worked out between then and now.  

**UPDATE (3 hours later):  I went ahead and followed the suggestion from the old PSE 14 Contact Sheet 2 error message post  and it WORKED!! So hope this helps any future novice who might run into the same problem on PSE 2019!!  

Finder>Go> (hold down Option Key and see Library)>Preferences>Adobe>Elements>17.0>Adobe Contact Sheet> (delete where it takes you).  When you quit the program and reload, your Contact Sheet 2 will work again!!  Thank you Adobe Support Community.