Hello aileen_alexaaa,
Thank you for participating in the Apple Support Communities! We understand that you're wondering what the difference is between different messages that you see when using Find My.
Check out the following support articles, which provide further explanation about the two messages:
Set up and use Find My Friends in iOS 12 or earlier - Apple Support
If you don't want your friends to see your location in Find My Friends, you can stop sharing from the app on your iOS device or on iCloud.com. You can still see the location of your friends, but your friends see Location Not Available when they try to locate you.
Locate a device in Find My on iPhone - Apple Support
If the device can’t be located: You see “No location found” under the device’s name.
Take care.