Display problem

Hi,

After setting the plugin, I have a problem I can not solve.
I attached 2 screenshots.

In firefox tab between the page name and the name of the site, there is the Archive word that appears (link screenshot 2).

I have the same problem in the sections of the article or page (link screenshot 1).

Can you help me?
My siteweb : https://www.site-ediscount.fr
In advance, thank you.
Sorry for my bad english, I’m french and I speak your language poorly.
Good reception,
Kind regards,
Gilles

https://www.ads-software.com/plugins/wordpress-seo/