Getting this error on config:cache execution

Using dump schema file:

class DumpSchema extends \BeyondCode\LaravelMaskedDumper\DumpSchema
{
/**
* @throws Exception
*/
public function getConnection(): ConnectionInterface
{
$connection = parent::getConnection();
$connection->getDoctrineSchemaManager()->getDatabasePlatform()->registerDoctrineTypeMapping('enum', 'string');

    return $connection;
}

}