Notifications don’t come

Yesterday I installed Ubuntu 19.04, but all notifications don’t come. My notification list is empty always. On Manjaro with same version of Gnome notifications worked. I tried Thunderbird*, Evolution, Mailspring. *in Thunderbird notifications appear on the desktop. Even when I install any app, in my notifications list don’t be shown message about transaction is over. I’ve thought the issue is in gnome extensions. But disabling it didn’t help. Any ideas?