Site name in site setting not work

hello, I use site name in site setting but the name doesn’t show up

look like this

And how to change this item :

If I remember correctly, the default theme only shows the site title if there is no logo. If you have a logo, then the title is hidden.

but if I delete that logo and the site title not show up too.

and how i can change the default name in taskbar “open journal System” with my web name

Ah, I read your message poorly and was thinking about a journal context.

That is a known problem: How to change title in browser tabe of front opage of multijournal site OJS

For our site I just edited the template files. I have a custom theme for the site and the edited template there. But I am sure they will fix that for a future release.