We are randomly not getting the original PDF attached to our form email

My form is set to include pdf in notification email. Randomly we start getting emails with no pdf attached. When I go into edit JotForm, the pdf needs to be re-uploaded. Why is this randomly happening and how can I make it stop please?!?!?!

Currently I am referring to the COVID Booster form

The error in the Smart PDF Forms builder is likely the reason why the attachment is failing. You do not need to re-upload the original PDF as it is there temporarily failing. I checked this through your form, and it's there, so I believe that was already fixed. If the issue persists, kindly update this ticket, and we will investigate further.

Thanks