Sorry for the trouble, as per the description, you are not getting the conversion option in Adobe Reader, Is that correct?
The record shows that you are subscribed to Adobe ExportPDF service, try accessing the service through the through the URL https://cloud.acrobat.com/exportpdf with your Adobe ID and password on a browser like Chrome, or Firefox, or Safari.
Sign out and sign back in Adobe Reader using your current Adobe ID and password, reboot the machine once and see if you get the conversion option in Adobe Reader.
Check for any pending updates of Adobe Reader from help>check for updates, reboot the machine after updating Adobe Reader.
For more troubleshooting, you may refer to Troubleshooting Create PDF, Export PDF, Adobe Send, Fill & Sign … services(PDFPack or Document Cloud...
Feel free to update this discussion for any further assistance.