Same posts showing; no CSS styling

Hi I have two problems.

First is that after my last reindex the same posts show on every page.

Second is that I’ve selected custom CSS and inserted the CSS from Default into my styles.css file, but the nrelate content isn’t styled. Thanks.

https://109.123.74.31/~sheffiel/

https://www.ads-software.com/extend/plugins/nrelate-related-content/