Clear old cache?

Apologies for all the posts recently..
Not a major issue but is there anyway to clear the ‘cached’ search results I seem to crop upon?..

For instance, if I search ‘test’ I get lots of results from matches from years ago etc

Also, on the results page, even if there’s only 1 result, pagination still shows [1][2] etc.. Is there a fix for this?

I’ve managed to learn a bit of php since installing this theme to edit parts, just have no clue where they would need editing haha..

Thanks! Again, love the theme. 😁