Hi Sergio,

Kindly find my response for your inquiries below:

https://support.google.com/webmasters/answer/1663744?hl=en
You use rel="next" in a tag...it is not present in the head tag

Thanks for the information given, I've logged this issue in our issue tracker and our developer will take an action for this.

in the author page
https://www.sfweb.it/blog/Autori/sergio.html
meta title and meta description can not be customized

For meta title, may I know do you have set any 'browser page title' http://take.ms/KfoB3 in any easyblog menu (maybe your frontpage or author menu?) where if you've set the page title in menu it will always use it in each page. Can you remove it so that the page title will be follow according to the author name instead- hence this will avoid the duplicate issue.