Next yii\db\IntegrityException: SQLSTATE[23000]: Integrity constraint violation: 1062 Duplicate entry '9816-1' for key 'content_elementId_siteId_unq_idx'
The SQL being executed was: UPDATE `content` SET `elementId`=9816, `siteId`=1, `title`='My title', `dateUpdated`='2019-06-04 11:40:11' WHERE `id`='12694' in /Applications/MAMP/htdocs/privatename/vendor/yiisoft/yii2/db/Schema.php:664
Stack trace:
#0 /Applications/MAMP/htdocs/privatename/vendor/yiisoft/yii2/db/Command.php(1295): yii\db\Schema->convertException(Object(PDOException), 'UPDATE `content...')
#1 /Applications/MAMP/htdocs/privatename/vendor/yiisoft/yii2/db/Command.php(1091): yii\db\Command->internalExecute('UPDATE `content...')
#2 /Applications/MAMP/htdocs/privatename/vendor/craftcms/cms/src/services/Content.php(192): yii\db\Command->execute()
#3 /Applications/MAMP/htdocs/privatename/vendor/craftcms/cms/src/services/Elements.php(512): craft\services\Content->saveContent(Object(craft\commerce\elements\Variant))
#4 /Applications/MAMP/htdocs/privatename/plugins/privatenamecore/src/imports/ProductImporter.php(368): craft\services\Elements->saveElement(Object(craft\commerce\elements\Variant))
#5 /Applications/MAMP/htdocs/privatename/plugins/privatenamecore/src/jobs/ImportUpdateTask.php(87): companyname\privatenamecore\imports\ProductImporter->update()
#6 /Applications/MAMP/htdocs/privatename/vendor/yiisoft/yii2-queue/src/Queue.php(214): companyname\privatenamecore\jobs\ImportUpdateTask->execute(Object(craft\queue\Queue))
#7 /Applications/MAMP/htdocs/privatename/vendor/yiisoft/yii2-queue/src/cli/Queue.php(147): yii\queue\Queue->handleMessage('12', 'O:46:"pixeldelu...', '300', 1)
#8 /Applications/MAMP/htdocs/privatename/vendor/craftcms/cms/src/queue/Queue.php(96): yii\queue\cli\Queue->handleMessage('12', 'O:46:"pixeldelu...', '300', 1)
#9 /Applications/MAMP/htdocs/privatename/vendor/craftcms/cms/src/controllers/QueueController.php(86): craft\queue\Queue->run()
#10 [internal function]: craft\controllers\QueueController->actionRun()
#11 /Applications/MAMP/htdocs/privatename/vendor/yiisoft/yii2/base/InlineAction.php(57): call_user_func_array(Array, Array)
#12 /Applications/MAMP/htdocs/privatename/vendor/yiisoft/yii2/base/Controller.php(157): yii\base\InlineAction->runWithParams(Array)
#13 /Applications/MAMP/htdocs/privatename/vendor/craftcms/cms/src/web/Controller.php(109): yii\base\Controller->runAction('run', Array)
#14 /Applications/MAMP/htdocs/privatename/vendor/yiisoft/yii2/base/Module.php(528): craft\web\Controller->runAction('run', Array)
#15 /Applications/MAMP/htdocs/privatename/vendor/craftcms/cms/src/web/Application.php(297): yii\base\Module->runAction('queue/run', Array)
#16 /Applications/MAMP/htdocs/privatename/vendor/craftcms/cms/src/web/Application.php(565): craft\web\Application->runAction('queue/run', Array)
#17 /Applications/MAMP/htdocs/privatename/vendor/craftcms/cms/src/web/Application.php(281): craft\web\Application->_processActionRequest(Object(craft\web\Request))
#18 /Applications/MAMP/htdocs/privatename/vendor/yiisoft/yii2/base/Application.php(386): craft\web\Application->handleRequest(Object(craft\web\Request))
#19 /Applications/MAMP/htdocs/privatename/public_html/index.php(21): yii\base\Application->run()
#20 {main}
Additional Information:
Array
(
    [0] => 23000
    [1] => 1062
    [2] => Duplicate entry '9816-1' for key 'content_elementId_siteId_unq_idx'
)