Fehler bei der Plugin-Installation

Fehler bei Plugin-Installation

Argument 1 passed to Shopware\Core\Framework\Store\Struct\CartPositionCollection::__construct() must be iterable, null given, called in /var/www/html/vendor/shopware/core/Framework/Store/Struct/CartStruct.php on line 44

/var/www/html/vendor/shopware/core/Framework/Store/Struct/CartStruct.php:

public static function fromArray(array $data): CartStruct
{

line 44 → $data['positions'] = new CartPositionCollection($data['positions']);

    return (new self())->assign($data);
}