all of my application dont give me notification

Have you opened the Settings App > Notifications > and Turned on Notifications for the apps you want notifications from and how you want to be notified. You need to do this for each app you see in the list below.

Use the Support button at the top or bottom of this page and reach out to Apple. If you're in the US, you can call Apple at: 800-MY-APPLE or stop by the Genius Bar at your closest Apple Store.