Here is my site : https://plantezrespirez.com/
When I search it on google.
I notice from the results that there are unknown pages that are present.
Pages as : Corporates Archives, Hover Effect Archives...
They have been removed from the admin for a long time.
Why are they visible on google ?
Please check the following article regarding your issue https://www.seoblog.com/2014/06/google-indexing-deleted-pages/
Thank you but the pages :
Google does not want to delete them !
Sorry, but your query is not related to the theme support scope, but to the SEO. You need send removal request to Google as described in the article I gave you https://www.seoblog.com/2014/06/google-indexing-deleted-pages/.