Cannot load configuration for payment method----------------> 解决！

You have recently upgraded to Magento and on the backend, when you try to edit, MANAGE CUSTOMERS > Edit Customer , you get an error,
“Cannot load configuration for payment method “amazonpayments_asp”

So, here is the fix for it,

• Goto the phpmyadmin
• Select your database and export the “core_config_data” table, so we have a backup.
• View all the data in the “core_config_data” table.
• Search for all instances of “AmazonPayments”
• Just select all those lines and delete them from the table.
• Come back to your Magento Admin .
• System > Cache Management > Flush Cache Storage