Overdrive supplementary content not available in Sonoma

I downloaded ADE as instructed on the Overdrive page: https://help.overdrive.com/en-us/0452.html per their tech support, but, when I attempt to access the supplementary PDF, I get an error message:

The ADE website seems to indicate that they have not updated it to run with Sonoma:

https://helpx.adobe.com/download-install/kb/macos-sonoma-compatibility-common-issues.html

Is there a fix for this? If not, what is the plan?

Thank you.