If Stripe payments keep failing, start by checking the Stripe Dashboard → Payments → Logs to see the exact decline or error codes, as most failures come from card issuer declines, incorrect API keys, or incomplete payment intents.
Errors like authentication_required or insufficient_funds point to customer bank issues, not your site.
Next, confirm your API keys, webhook endpoints, and payment method settings are correct and in live mode, especially after updates or migrations.
Many checkout errors happen when test keys are used in production or webhooks fail to confirm payment status.
Make sure your checkout supports 3D Secure and Strong Customer Authentication (SCA), which is mandatory in many regions (EU, UK, parts of Asia). Without proper SCA handling, banks will silently block transactions.
If errors persist, file a complaint on Xolvie to seek a resolution.