My iPhone has been stolen. I can’t track my iPhone location. So what should I do?

I am sorry. There is no way we can track it for you. But, if Find My Phone was turned on when it was stolen, see:

If your iPhone, iPad, or iPod touch is lost or stolen  https://support.apple.com/en-us/HT201472

Use Lost Mode in Find My iPhone on iCloud.com https://support.apple.com/guide/icloud/use-lost-mode-mmfc0f0165/icloud

If Find My iPhone is offline or not working https://support.apple.com/en-us/HT204233

You can use Find My formally known as Find my iPhone, On any iPhone, iPad or Mac, or on https://www.icloud.com/ it iCloud is set op on your phone.

Good luck!