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i am trying to reindex Product Attributes (catalog_product_attribute), but i am getting the following error
Product Attributes index process unknown error:
exception ‘PDOException’ with message ‘SQLSTATE: Integrity constraint violation: 1062 Duplicate entry ‘390-194-1-169’ for key 1’ in /var/www/vhosts/stantonoptical.com/framegenie/lib/Zend/Db/Statement/Pdo.php:228