There is an exception error when I go to MANAGE PRINT PDF HEADER INFOLink to that https://zellora.store/marketplace/order/shipping/Plz solve this AS SOON AS POSSIBLE
I believe that the best way to resolve your matter is contacting immediately the provider.
They know the code and will support you with matters quickly.
In my experience, I always choose providers with responsive support such as Landofcoder, Amasty, Mageplaza, etc.
Hope your issues will be soon resolved!