Cs-Cart Upgrade Error

Hello,



I am getting the following error while trying to upgrade my CS-Cart



Any help is highly appreciated.



Error occurred: post upgrade[color=#B94A48]Duplicate entry '16777215' for key 'PRIMARY'[/color]b[/b][color=#B94A48]:[/color]INSERT INTO cscart_ipv6_temp_orders (SELECT order_id, ip_address FROM cscart_orders)