remix-ideでdeployするとcreation of BrandVerification pending...で止まる

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

contract BrandVerification {
    struct Product {
        string serialNumber;
        address[] owners;
    }

    mapping(string => Product) private products;

    // ブランド品を登録
    function registerProduct(string memory _serialNumber) public {
        require(products[_serialNumber].owners.length == 0, "Product already registered");
        products[_serialNumber].serialNumber = _serialNumber;
        products[_serialNumber].owners.push(msg.sender);
    }

    // 真正性を確認
    function verifyProduct(string memory _serialNumber) public view returns (bool) {
        return products[_serialNumber].owners.length > 0;
    }

    // 所有権を移転
    function transferOwnership(string memory _serialNumber, address newOwner) public {
        require(products[_serialNumber].owners.length > 0, "Product not registered");
        require(products[_serialNumber].owners[products[_serialNumber].owners.length - 1] == msg.sender, "Not the owner");

        products[_serialNumber].owners.push(newOwner);
    }

    // 流通履歴を取得
    function getHistory(string memory _serialNumber) public view returns (address[] memory) {
        return products[_serialNumber].owners;
    }
}