Direct card payments need a developer
Vendors pay you through a payment plugin you already run. 5 are configurable from wp-admin today: WooCommerce, WooCommerce Subscriptions, WooCommerce Memberships, Paid Memberships Pro, MemberPress.
Stripe and PayPal are fully built inside the bundled Credits SDK - hosted Stripe Checkout, webhook signature verification, refunds - and both register as built-in gateways with a complete settings screen. That screen is switched off by default while the buyer-facing purchase flow is finished off, so turning it on means adding one filter to your site:
add_filter( 'wb_listora_pro_show_gateway_settings', '__return_true' );
If you would rather not touch code at all, take payment through WooCommerce.