Hi @ahmadsaid123, I am very sorry to hear that your phone got stolen.
If you have added a Google-account to your Xperia device you should be able to erase your user data from the device remotely using Googles' service Find My Device. By doing this, your user data will be erased as soon as your device is connected to an internet connection, such as mobile data or Wi-Fi.
Simply log in to the service using your Google credentials > click on your XZ Premium if you have multiple Android devices connected to your Google account > Click on the Erase-option.
I hope that this helped. Let me know if you have any further questions!
