adjust userNotification

src/client/js/components/Admin/Notification/UserTriggerNotification.jsx

@@ -124,10 +124,9 @@ class UserTriggerNotification extends React.Component {
                 <button type="button" className="btn btn-primary" disabled={!this.validateForm()} onClick={this.onClickSubmit}>{t('add')}</button>
               </td>
             </tr>
-            {userNotifications.map((notification) => {
+            {userNotifications.length > 0 && userNotifications.map((notification) => {
               return <UserNotificationRow notification={notification} onClickDeleteBtn={this.onClickDeleteBtn} key={notification._id} />;
-            })
-            }
+            })}
           </tbody>
         </table>
       </React.Fragment>