Check for valid accessory category

app/Http/Controllers/AccessoriesController.php

@@ -258,10 +258,17 @@ class AccessoriesController extends Controller
             return redirect()->route('accessories.index')->with('error', trans('admin/accessories/message.not_found'));
         }
 
+        if ($accessory->category) {
+
             $this->authorize('checkout', $accessory);
 
             // Get the dropdown of users and then pass it to the checkout view
             return view('accessories/checkout', compact('accessory'));
+        }
+
+        return redirect()->back()->with('error', 'The category type for this accessory is not valid. Edit the accessory and select a valid accessory category.');
+
+
 
     }