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Argument 1 passed to Magento\Catalog\Model\ProductRepository::prepareSku() must be of the type string, null given, called in /var/www/mycavas/mycava.gr/vendor/magento/module-catalog/Model/ProductRepository.php on line 794

Error log record number: 00dcb68b5b8204979b313dfabc44239110f7f3bc6ec07876ff08b2db179dc419