The Buy / Book button has disappeared
Following the activation of your Stripe account, it is necessary that your sellers complete their identity information, so that transactions can be made on their listings.
Indeed, Stripe has a legal obligation to collect the identity information of sellers, to allow them to use this service.
When logged in, your sellers see an alert message telling them to complete the Stripe form:
As long as the form is not completed, their listings are visible but no purchase can be made. You can learn more about the Stripe process here: Onboarding Your Sellers on Stripe.