[Dashboard] Fix if user locator is not valid

application/controllers/Dashboard.php

@@ -28,12 +28,16 @@ class Dashboard extends CI_Controller {
 				$this->load->library('qra');
 
 				$qra_position = $this->qra->qra2latlong($this->session->userdata('user_locator'));
+				if ($qra_position) {
 					$data['qra'] = "set";
 					$data['qra_lat'] = $qra_position[0];
 					$data['qra_lng'] = $qra_position[1];   
 				} else {
 					$data['qra'] = "none";
 				}
+		} else {
+				$data['qra'] = "none";
+		}
  
 		$this->load->model('stations');
 		$data['current_active'] = $this->stations->find_active();