Why my site getting soft 404 errors from search term on 404 page showing in GWT?

Hi,

I just recently switched to the wordpress and I’m suddenly getting a couple of soft 404 errors on Google Webmaster tools.

I think they are all coming from the somehow automatic search or getting crawled by Google within coding of our wordpress website on the NOT FOUND page since that’s the only search page I have found, they all have the term {search_term} as the search query and the page gives me a “Nothing Found” result.

I would love to hear some advice on how to resolve this issue.

This is what I see on the webmaster tool, also check the screen link here.

My website url is https://akclinics.org/

Soft 404
Url: https://akclinics.org/search/%7Bsearch_term%7D/

Linked from
https://akclinics.org/search/{search_term}/
https://akclinics.org/?s=%7Bsearch_term%7D

Thank you,
Ram Babu