We have a website which uses the WP E-Commerce plugin and it has worked perfectly for over a year now. But recently, the site admin updated to the latest version of this plugin and we have hit a stumbling block.
Everything works fine up until checkout. Whenever the user clicks 'Purchase' they are met with this error.
SetExpressCheckout API call failed.
Detailed Error Message:
Short Error Message:
Error Severity Code:
I can confirm that it is the latest version of the plugin. I have also done the whole process of deactivating other plugins/theme etc, but that has shed no light on the issue.
Any help would be much appreciated.
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