Stripe requires business and support URLs to be secure links. Sprwt checks the Bussiness Url and Support Url fields before sending them and rejects anything that does not start with https:// - so www.mykitchen.com or http://mykitchen.com both fail with that message. Enter the full address including the https:// prefix (for example https://www.mykitchen.com) and submit again. Leave the field empty if you do not want to change it.