WarmlyShip/WarmlyShip/FormShipCollection.cs

@@ -138,7 +138,12 @@ namespace WarmlyShip
 
         private void ButtonRefresh_Click(object sender, EventArgs e)
         {
+            if (_company == null)
+            {
+                return;
+            }
 
+            pictureBox.Image = _company.Show();
         }
     }
 }