When facing an unknown error in Odoo, it can be difficult to identify the root cause of the issue. However, there are some general steps you can take to troubleshoot the problem.

Check the Odoo log files: The log files can provide useful information about the error. Look for any error messages or stack traces that may give a hint as to what is causing the problem.

Disable custom modules: If you have installed any custom modules, try disabling them one by one to see if the error goes away. Sometimes, custom modules can interfere with the normal functioning of Odoo and cause errors.

Check the payment configuration: Make sure that the payment method and settings are configured correctly. Check that the payment gateway is properly configured and that the account details are correct.

Try a different payment method: If the error persists, try using a different payment method to see if the problem is specific to a particular payment method.

Check with the payment gateway provider: If the issue is with the payment gateway, contact the payment gateway provider for assistance.

Check with Odoo support: If none of the above steps solve the issue, contact Odoo support again and provide them with as much information as possible about the error, including any error messages or stack traces that you have found in the log files.

In general, it's important to provide as much information as possible when seeking support, including the version of Odoo you are using, any custom modules installed, and any error messages or stack traces you have encountered. This can help support personnel to quickly identify the cause of the issue and provide an appropriate solution.

Hi Bhavain, thanks for your response. The error is resolved. It was misconfigured payment methods.