diff --git a/application/models/Vucc.php b/application/models/Vucc.php
index 85ea9715..148feb60 100644
--- a/application/models/Vucc.php
+++ b/application/models/Vucc.php
@@ -341,26 +341,30 @@ class VUCC extends CI_Model
             $col_gridsquare_worked = $this->get_vucc_summary('All', 'none');
     
             $workedGridArray = array();
-            foreach ($col_gridsquare_worked as $workedgrid) {
-                array_push($workedGridArray, $workedgrid['gridsquare']);
-                if(!in_array($workedgrid['gridsquare'], $totalGridWorked)){
-                    array_push($totalGridWorked, $workedgrid['gridsquare']);
+            if ($col_gridsquare_worked != null) {
+                foreach ($col_gridsquare_worked as $workedgrid) {
+                    array_push($workedGridArray, $workedgrid['gridsquare']);
+                    if(!in_array($workedgrid['gridsquare'], $totalGridWorked)){
+                        array_push($totalGridWorked, $workedgrid['gridsquare']);
+                    }
                 }
             }
     
             $col_vucc_grids_worked = $this->get_vucc_summary_col_vucc('All', 'none');
     
-            foreach ($col_vucc_grids_worked as $gridSplit) {
-                $grids = explode(",", $gridSplit['col_vucc_grids']);
-                foreach($grids as $key) {
-                    $grid_four = strtoupper(substr(trim($key),0,4));
-    
-                    if(!in_array($grid_four, $workedGridArray)){
-                        array_push($workedGridArray, $grid_four);
-                    }
-    
-                    if(!in_array($grid_four, $totalGridWorked)){
-                        array_push($totalGridWorked, $grid_four);
+            if ($col_vucc_grids_worked != null) {
+                foreach ($col_vucc_grids_worked as $gridSplit) {
+                    $grids = explode(",", $gridSplit['col_vucc_grids']);
+                    foreach($grids as $key) {
+                        $grid_four = strtoupper(substr(trim($key),0,4));
+        
+                        if(!in_array($grid_four, $workedGridArray)){
+                            array_push($workedGridArray, $grid_four);
+                        }
+        
+                        if(!in_array($grid_four, $totalGridWorked)){
+                            array_push($totalGridWorked, $grid_four);
+                        }
                     }
                 }
             }
@@ -368,27 +372,31 @@ class VUCC extends CI_Model
             // Getting all the confirmed grids
             $col_gridsquare_confirmed = $this->get_vucc_summary('All', 'both');
     
-            $confirmedGridArray = array();
-            foreach ($col_gridsquare_confirmed as $confirmedgrid) {
-                array_push($confirmedGridArray, $confirmedgrid['gridsquare']);
-                if(!in_array($confirmedgrid['gridsquare'], $totalGridConfirmed)){
-                    array_push($totalGridConfirmed, $confirmedgrid['gridsquare']);
+            if ($col_gridsquare_confirmed != null) {
+                $confirmedGridArray = array();
+                foreach ($col_gridsquare_confirmed as $confirmedgrid) {
+                    array_push($confirmedGridArray, $confirmedgrid['gridsquare']);
+                    if(!in_array($confirmedgrid['gridsquare'], $totalGridConfirmed)){
+                        array_push($totalGridConfirmed, $confirmedgrid['gridsquare']);
+                    }
                 }
             }
     
             $col_vucc_grids_confirmed = $this->get_vucc_summary_col_vucc('All', 'both');
     
-            foreach ($col_vucc_grids_confirmed as $gridSplit) {
-                $grids = explode(",", $gridSplit['col_vucc_grids']);
-                foreach($grids as $key) {
-                    $grid_four = strtoupper(substr(trim($key),0,4));
-    
-                    if(!in_array($grid_four, $confirmedGridArray)){
-                        array_push($confirmedGridArray, $grid_four);
-                    }
-    
-                    if(!in_array($grid_four, $totalGridConfirmed)){
-                        array_push($totalGridConfirmed, $grid_four);
+            if ($col_vucc_grids_confirmed != null) {
+                foreach ($col_vucc_grids_confirmed as $gridSplit) {
+                    $grids = explode(",", $gridSplit['col_vucc_grids']);
+                    foreach($grids as $key) {
+                        $grid_four = strtoupper(substr(trim($key),0,4));
+        
+                        if(!in_array($grid_four, $confirmedGridArray)){
+                            array_push($confirmedGridArray, $grid_four);
+                        }
+        
+                        if(!in_array($grid_four, $totalGridConfirmed)){
+                            array_push($totalGridConfirmed, $grid_four);
+                        }
                     }
                 }
             }