Hi Michelle,
Thank you for reaching out, and sorry for the delay in response.
We have checked your account and see that you have a Photogrpahy plan. However, to convert the PDF to word, you will require any one of the following plans:
Acrobat Pro DC: https://helpx.adobe.com/acrobat/faq.html
Acrobat PDF Pack: https://helpx.adobe.com/document-cloud/faq/adobe-pdfpack-faq.html
Acrobat Export PDF: https://helpx.adobe.com/document-cloud/faq/adobe-exportpdf-faq.html
As you were able to convert the PDF before, it seems that you had used the one-time free trial on the Adobe Acrobat Online account.
Let us know if you have any questions.
Thanks,
Meenakshi