Why did the page decline after installing Yoast SEO?

[Alkomahooli]

I created this article with the keyword "Minecraft 1.20 Updates." It was on the first page. After installing the Yoast SEO plugin, I improved it and reindexed it. This time it has dropped to the middle of the second page. What could be the reason for this? [Link to the article: https://www.oynamakistiyorum.com/2023/05/05/minecraft-1-20-yenilikleri-neler/]