Good day, management4.
When creating invoices with Zapier, it's best to reach out to them. They can walk you through the steps on a proper way of creating it. They can also check why it uses the deleted product/service.
You can get their contact details through this link: https://apps.intuit.com/app/apps/appdetails?shortName=zapier&locale=en-us.
Get back to me anytime of you have any more questions I can help. Have a great day!