picasa won't work now that I updated my computer - I was told to contact you

This is a user

helping other users with tech questions forum, you are not addressing apple

here  just  fellow users

not sure if google even support it anymore think they replaced it with

google photos years ago Moving On From Picasa - The New York Times (nytimes.com)

you can try their latest version

try

Picasa 3.9.137.192 for Mac - Download (uptodown.com)

Google discontinued Picasa more than 5 years ago. The following may help: https://picasa.google.com/