Whatsapp message error

So, I have already setup frappe_whatsapp and its working for sales invoice, Where We are sending Invoice Print but in template when I’m using Attach from field and seleted a field ( field type Attach ), its giving me media error on whatsapp message.

Content-Type: application/pdf,
File name : test.pdf ( Public File ) its accessiable I checked already, file size is less then 100 MB.
Template Media type : Document

meta template error message :-
7 messages could not be delivered

Unable to upload the media used in the message.

Error code: 131053.

This error occurs only when i use Attach from field but when I directly attached it to the template, the same file its working and message is delivered.

What am I doing wrong please let me know.
Your response is highly valuable.
Thank you!

Any suggestions please, What can I do to attach custom field file in my whatsapp template message ?