Could not start checkout
Short balance/reseller top-up failure (balanceTopUp.checkoutStartFailed / route catch). Sibling of premium’s longer Checkout could not be started — try again.
Why this happens
Selected gateway not ready, validation error, or exception while creating the pending payment / redirect. Prefer the specific Error string when the API returns one.
Diagnose and fix
1. Retry; pick another payment method if available.
2. Admin: enable the chosen gateway (Stripe, PayPal, BTCPay, etc.).
3. Check logs for the underlying message on /api/account/balance/top-up.
4. Confirm top-up options loaded first (Could not load top-up options).