Hello Bettina, thanks for your reply.
Perhaps yesterday, due to fatigue, I did not explain myself correctly.

Exactly for what is wrote on the reference page ( https://forum.tagdiv.com/topic/action-required-please-read-how-to-update-to-the-newspaper-theme-v-10/ ) I installed the “standard pack” plugin BUT it doesn’t work. All the shortcodes were broken. Maybe because I’ve tryed to update from version 8 to 10?

And, as I’ve wrote yesterday, I have used an FTP client to update all the files.

All the requirements are Ok.

Obviously I’ve done a security backup but the site is quite big and it’s not so easy to do a backup and a rollback.

Yesterday I’ve wrote in this “support blog” just because I’ve no solution: following the standard instructions the site broke up. And I have had to rollback it.

This is a site made years ago by a third person that now I have to manage.
This site is a large one, with a 1,2giga of database and a lot of documents and files.
The site has installed an old version of your theme. I’ve asked the client to buy the licens to upgrade it but it seems not to work.

Could you please give me a suggestion?