[Plugin: WordPress SEO by Yoast] SEO displays login/register on search engine

Am using a classipress theme for wordpress. I installed this plugin and configured it but the problem is that it displays login/register pages on search engine while it wasn’t supposed to do that.

Any recommendations on how to fix this?

My site is https://www.globaladverts.biz/

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