PDF links for Onboarding Presentations in Gamma unavailable after 10 days – Need assistance

Hello Team. I have a Zapier creating my Onboarding Presentations automatically. My Onboarding Program had personalised topics. So Zapier reads the topics selected for those specific customers, and sends them to Gamma for a presentation creation following a template. For presentations created longer than 10 days ago, I can see that they still exist in Gamma, but the PDF links are no longer available. Look at the video attached. Can you help me with it?