u

app/Models/Issue.php

@@ -29,9 +29,12 @@ class Issue extends Authenticatable
 
     function getWinningArrayAttribute()
     {
-        $winning_numbers = explode(',', $this->winning_numbers);
-        $winning_numbers = array_map('intval', $winning_numbers);
-        return $winning_numbers;
+        if (!empty($this->winning_numbers)) {
+            $winning_numbers = explode(',', $this->winning_numbers);
+            $winning_numbers = array_map('intval', $winning_numbers);
+            return $winning_numbers;
+        }
+        return [];
     }
 
     function getAwardAttribute()