Please let us know if it has worked fine before. Did you check if the issue occurs while working with a particular file?
Could you please confirm if you are using the feature in Acrobat or the freeware Reader? Also, please share the application and OS version currently in use.
Are you still encountering the issue? Please try restarting the app, sign out, sign in again with the Adobe ID (email) linked to the purchase, and then check.
Please let us know if you encounter any error messages.
I hope you are doing well. Thanks for reaching out.
Are you getting the error message with a specific PDF file, or is it happening with all PDFs? Are you using the AI assistant on Acrobat or the freeware Reader? Also, could you please confirm the current version of Mac OS that has been installed? I assume you're using the latest Acrobat/Reader app version: 24.002.20687. Try experimenting with a different set of PDFs to see if you encounter the same error message. Additionally, restart the app once and give it another try.