Urgent: biodata and observations pages

I got an email from UKVACS just now for my appointment tomorrow which said " * Applicant’s passport issued by [country] to be uploaded into the ‘Proof of Identity/Travel History’ category, please ensure the full biodata and observations pages are uploaded together in one image."

Does this mean every single page of my passport merged into one PDF doc (with multiple pages), or just the passport pages with things on them?

My last passport pages are blank so following these instructions is just the same doc I uploaded that received the error from UKVACS… : Upload passport and BRP - UK Tech Nation Visa Forum (tnvisaforum.org)