Cannot save or save as JPG or PSD on MAC High Sierra PSE 2020

[janet aycockg44284333]

Have been using PSE for years.  Suddenly with 2020 version I cannot save edited photos as JPG or PSD.  I get a popup saying 

"because the file name was not valid."  What gives??? How do I create a 'valid' file name?  Any explanation or workaround? Thank you. 

[Peru Bob]

See if this helps:

https://kb.iu.edu/d/atpw