Read Understand Mollie statuses for an overview of how Mollie statuses are related to PrestaShop statuses, and how communication between Mollie and PrestaShop takes place.
If the statuses don't match, check whether payments are processing properly.
To get the PrestaShop log file(s), follow these steps:
Log in to PrestaShop.
Go to Advanced parameters > Logs.
The information provided in the logs should help you to understand which troubleshooting steps to take. We recommend that you share the log files with us whenever you contact support for assistance.
Before updating Mollie for PrestaShop, review Mollie for PrestaShop releases to ensure compatibility with your version of PrestaShop or third-party modules.
To verify that the API keys are correct, follow the steps given in Connect to Mollie.