Hi, I'm having the same issue here... I had a working app and tried to redeploy after adding some functionalities, but got the same. Also works locally as expected.
Tried this, among others (like restarting and updating RStudio):
https://forum.posit.co/t/ssl-certificate-problem-when-deploying-to-shinyapps-io/8727/2
But didn't work either. Any thoughts?
Thanks, Fabio