Just Ahead requires certain permissions on your phone to access the GPS in your device. If you disable these permissions we cannot access the GPS which we need to play your audio tour. In certain instances you may have accidentally disabled these permissions. Below are directions on how to re-enable these permissions.
Open your device's Settings app.
Tap Security & location and then Location.
If you don't see "Security & location," tap Location.
Under "Recent location requests," see the apps that recently checked your device's location.
Tap Just Ahead
Tap Permissions
Make sure the Location permission is enabled. If not tap to turn it on.
Relaunch Just Ahead and you should be all set.