What is the permanent url to be assigned in DOI

Description of issue or problem I’m having:
Dear community, I am trying to assigning DOI for any tables/figures in the article that use xml/html. But confused about the article url for the DOI.

I used Plos works as starting point, and here is the example

The DOI for that figure returned back to a specific url in that article.

Steps I took leading up to the issue:

What I tried to resolve the issue:
I tried to use the xml galley url (Elimination of Dengue Hemorrhagic Fever Vector through Extension and Installation of Ovitrap in Puuwatu Village, Puuwatu District | Jurnal Inovasi, Pemberdayaan Dan Pengabdian Masyarakat), but, if I used htlm as full text, the url will changing too.

Is there any way to make a permanent link for figures/image that able to connect either in xml full text and html?

Application Version - e.g., OJS 3.1.2:

We are using OJS 3.2.1. 3

Additional information, such as screenshots and error log messages if applicable:

Hi,

To assign new DOI’s to the articles, ensure you have enabled and configured the DOI plugin. Then go to the submission dashboard to access the submitted article. Now, open metadata on the top right of the tab and open the Identifiers tab. Check the box next to assign DOI to the article. Click Save.

You can also refer to this doucment:

Getting Started with DOIs
DOI Plugin