style is broken

Dear support team,
since a couple of days the frontend design of my YARP-PlugIn is changing. I am using the thumbnail design but it does not appear in the way it should. Instead of showing the thumbnail above the title it shows thumbnail and title in one line.

I don’t know why the PlugIn react like this and I can’t change it back. Please help.

Here a link to one of my posts to show you what I am talking about. You’ll find the PlugIn below the content.

http://nuestra-america.de/kappadokien-heissluftballon/

Thanks for your support

https://ww.wp.xz.cn/plugins/yet-another-related-posts-plugin/