No apple news app after the mojave upgrade
You will want to delete the pirate copies of the installer and re-try a clean erase install from an image you get from Apple directly.

Once that's done, consider that once the app is installed, it may be blocked or not work in most regions.


  The News app is available in Australia, the United Kingdom, and the United States.


https://support.apple.com/kb/HT202329

Make sure you're in a region where the app is available, or have the region of macOS set to one of these regions.