Magento2.4 Save order display Some transactions have not been committed or rolled back

<?php

    

namespace CgtgPayControllerPayment;


use MagentoFrameworkAppResponseInterface;
use MagentoSalesApiOrderRepositoryInterface;
use MagentoFrameworkAppCsrfAwareActionInterface;


class Make extends MagentoFrameworkAppActionAction
{

    protected $_orderRepository;

    public function __construct(
        OrderRepositoryInterface $orderRepository,
        MagentoFrameworkAppActionContext $context

    ){
        $this->_orderRepository = $orderRepository;
        parent::__construct($context);

    }

    /**
     * @inheritDoc
     */
    public function execute()
    {
        // TODO: Implement execute() method.
        $order = $this->_orderRepository->get('1');
        $order->addStatusHistoryComment('notify make11991 status make  49944: ');
        $order->setState(MagentoSalesModelOrder::STATE_COMPLETE)
            ->setStatus(MagentoSalesModelOrder::STATE_COMPLETE);
        $this->_orderRepository->save($order);

    }
}

return Fatal error: Uncaught Exception: User Error: Some transactions have not been committed or rolled back in /Magento/Framework/DB/Adapter/Pdo/Mysql.php on line 4050

Can someone help me find the problem?
Thank you very much！