laravel 5.4 : Image file not uploaded on the aws server - laravel

Question

When i work on locally upload image on folder works perfect but when i try to upload image on amazon web server file not uploaded and back with same page.Is there any problem with my code ?
Here is my controller function to save data :
// CountryController
public function save(Request $request) {
try {
$file = $request->file('flag_image');
$this->validate($request, Country::rules());
//$request->validate(Country::rules());
/*Image Upload code*/
If(Input::hasFile('flag_image')){
$file = Input::file('flag_image');
$destinationPath = public_path(). '/images/admin/country/';
$filename = $file->getClientOriginalName();
$image = time().$filename;
$file->move($destinationPath, $image);
$imgpath = 'images/admin/country/'.$image;
}
if($file !="") {
$request->merge(['flag_image' => $imgpath]);
}
/*Image Upload code end*/
$country = Country::saveOrUpdate($request);
if($file !="") {
$country->flag_image = $imgpath;
$country->save();
}
if($country !== false) {
return redirect()->route('lists-country')->with('success', trans('Country data added successfully.!!'));
} else {
return back()->with('error', "Unable to save country data.!!")->withInput();
}
} catch (\Exception $ex) {
return back()->with('error', "Unable to save country data.!!")->withInput();
}
}
And my model code look like:
//country model
namespace App;
use Illuminate\Http\Request;
use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Input;
class Country extends Model
{
/**
* The attributes that are mass assignable.
*
* #var array
*/
protected $fillable = [
'title',
'short_name',
'flag_image',
'status'
];
const STATUSES = [
'Active' => 'Active',
'Inactive' => 'Inactive',
];
const DEFAULT_STATUS = 'Active';
/**
* Indicates if the model should be timestamped.
*
* #var bool
*/
public $timestamps = false;
public static function rules() {
return [
'title' => 'required|string|max:255',
'short_name' => 'required',
'status' => 'required|string|in:' . implode(",", Country::STATUSES)
];
}
public static function saveOrUpdate(Request $request) {
try {
$id = $request->get('id', false);
$country = false;
DB::transaction(function () use ($request, &$country, $id) {
$country = $id ? Country::findOrFail($id) : new Country();
$country->fill($request->all());
try {
$country->save();
} catch (\Exception $ex) {
throw $ex;
}
});
return $country;
} catch (\Exception $ex) {
throw $ex;
}
} }
What's the problem i didn't find anything.