Search results on google scholar display HTML, it should be PDF

Hi, I’m a new OJS user, our OJS has problems in google scholar.
when searching for article titles on google scholar, the article appears on google scholar but cannot be directly downloaded, because what appears is HTML not PDF.

the effort I made
I tried re-indexing the article and entering the sitemap in the google console, but it has been more than 2 weeks that the HTML has not turned into PDF.
Where is the mistake?
is it related to galley_link.tpl file?

I am using OJS 3.3.0-8

Here’s an example picture of this problem

for anyone who wants to help, I am very happy. thank you

Everything is fine in your article’s header.

<meta name="citation_pdf_url" content="https://www.jcli-bi.org/index.php/jcli/article/download/7/10"/>

Indexing in Google Scholar may take some while and needs patience.

well, maybe I should be more patient again
thanks for the reply