Android Error to get location

Hello I want to get location but it is not loading.

My class for load location:

public class GetGPCAdress implements LocationListener {

Activity activity;
GetAdress getAdress;

public GetGPCAdress(Activity activity, GetAdress getAdress) {
this.activity = activity;
this.getAdress = getAdress;
try {
LocationManager locationManager = (LocationManager) activity.getSystemService(Context.LOCATION_SERVICE);
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 1, 5, this);
}
catch(SecurityException e) {
e.printStackTrace();
}
}

@Override
public void onLocationChanged(Location location) {
getAdress.get_gpc_address(location.getLatitude(), location.getLongitude());
}

....


and from activity i run it

private void load_locatio () {

Log.d("NekTest", "StartLoadLocation");

new GetGPCAdress(activity, new GetGPCAdress.GetAdress() {
@Override
public void get_gpc_address(Double lat, Double log) {
my_latitude = lat;
my_logtitude = log;

Log.d("NekTest", "AddressTook");

open_dialog();
}

@Override
public void get_full_address(String address) {
full_address = address;
}
});

}


I granted all permissions and checked it before run
and also wrote permission in the manifest file.

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