I have faced the same issue too. It's easy to fix.
Fix 1: Check Your Location Services
- Go to Settings > Privacy & Security.

- Select Location Services and toggle it on. 
Check out steps from this guide for clear photos:
Fix 2: Enable Share My Location
- Go to Settings > Find My iPhone.
- Tap on Share My Location and turn it on.

Fix 3: Restart iPhone
- Turn off Find My app service in Settings.
- Press and hold any Volume button with the Power button until the power slider appears.
- Check the steps Restart your iPhone - Apple Support
- Drag the power slider to turn off the device.
- Once off, press and hold the Power/Side button to turn it on.
If issue is still there check out steps from this guide aswell:
[Edited by Moderator]