I'm running the upgrade script and have got the following error:
Error Code(0): Error: Duplicate entry '8-1' for key 'PRIMARY'
Error No: 1062
INSERT INTO `customer_group_description` SET `customer_group_id` = '8', `language_id` = '1', `name` = 'Default' in /system/library/db/mysqli.php on line 40
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Opencart.com Administrator / Quality Assurance Analyst / Programmer