Load lib only if not loaded (prevent spilling of logs)

application/models/Logbook_model.php

@@ -2845,7 +2845,9 @@ function check_if_callsign_worked_in_logbook($callsign, $StationLocationsArray =
          if (isset($row)) {
             $station_gridsquare = $row->station_gridsquare;
          }
+         if(!$this->load->is_loaded('Qra')) {
             $this->load->library('Qra');
+         }
          if ($qsl_gridsquare != "") {
             $data['COL_GRIDSQUARE'] = $qsl_gridsquare;
             $data['COL_DISTANCE'] = $this->qra->distance($station_gridsquare, $qsl_gridsquare, 'K');