No issues in the log…
[05/09/2018 2:57 PM] – Payment processing started.
[05/09/2018 2:57 PM] – Triggering hook for addons to process posted data if needed.
[05/09/2018 2:57 PM] – Checking received data.
[05/09/2018 2:57 PM] – Got product ID: 6387. Trying to get info from database.
[05/09/2018 2:57 PM] – Got required product info from database.
[05/09/2018 2:57 PM] – Getting API keys and trying to create a charge.
[05/09/2018 2:57 PM] – Firing pre-payment hook.
[05/09/2018 2:57 PM] – Processing payment.
[05/09/2018 2:57 PM] – Firing post-payment hooks.
[05/09/2018 2:57 PM] – Payment has been processed successfully.