Hi @IJELLH,
I suggest you make an account in google search console. Following is the link:
https://www.google.com/webmasters/tools/home?hl=en
Once logged in, you add a property where you add you website and verify it.
Then add the sitemap of your website under “crawl”
The path to the sitemap would be:
http://ijellh.com/OJS/index.php/OJS/sitemap
Wait for 2-6 weeks. In my case, it never took more than two weeks.
Let me know the results.
Best regards,