If you are facing issues while making payment through Stripe checkout in WP Travel, please once verify if ‘Test Mode‘ is enabled or not? If the ‘Test Mode‘ option has been enabled then please disable this option by going to Admin Panel > WP Travel > Settings > Debug
Also, please verify if the keys (publishable key & secret key ) required for Stripe checkout gateway has been added or not by going to Admin Panel > WP Travel > Settings > Payment > Stripe Checkout
Further, make sure that the keys (publishable key & secret key) that you have added for this payment gateway are correct.
Further, if you have any queries, please submit them to our Contact page.