Hello Annm,
We apologize for the inconvenience caused, as per the description above, you are not able to use the Adobe ExportPDF service, Is that correct?
The record shows that you are subscribed to Adobe ExportPDF service with your current Adobe ID, access the service through the URL https://cloud.acrobat.com/exportpdf with your Adobe ID and password on a browser like Chrome, or Firefox, or Safari.
If you are using the freeware Adobe Reader DC and facing the issue, please sign out and sign back in Adobe Reader using your current Adobe ID and password, then check for any pending updates of Adobe Reader from help>check for updates. Install the updates and reboot the machine and try exporting the PDF.
For more troubleshooting, refer to Troubleshooting Create PDF, Export PDF, Adobe Send, Fill & Sign … services(PDFPack or Document Cloud Services).
Let us know how it goes and share your findings.
Regards,
Anand Sri.