Insufficient
Premium checkout shows the short label Insufficient (premium.checkout.balanceInsufficient) when account balance cannot cover the selected plan.
Why this happens
UI badge/status for Pay with balance when funds are too low. Longer API text is usually Insufficient balance.
Diagnose and fix
1. Top up balance (Account balance top-up) then retry.
2. Or pay by card/PayPal/crypto instead of balance.
3. Confirm the displayed price matches the plan.
4. See Pay with balance for how balance checkout works.