I tried to call Metamask and call trasnaction send but nothing had happened after I clicked on both buttons. Do you see anything bad there. I had this code from past And I really think it was working.

At first I need to enable ethereum, then is added BNB nework if was not before.
Then I can load transaction by click to Send Eth.
Thank you for reply

<button class="enableEthereumButton btn">Start Metamask</button>
<button class="sendEthButton btn">Send BNB</button>
<h2>Account: <span class="showAccount"></span></h2>




const ethereumButton = document.querySelector('.enableEthereumButton');
const sendEthButton = document.querySelector('.sendEthButton');
const showAccount = document.querySelector('.showAccount');


let accounts = [];

//Sending Ethereum to an address

console.log(window.ethereum.networkVersion, 'window.ethereum.networkVersion') ////

sendEthButton.addEventListener('click', () => {
  window.ethereum.request({
    method: "wallet_addEthereumChain",
    params: [{
        chainId: "0x38",
        rpcUrls: ["https://bsc-dataseed.binance.org/"],
        chainName: "Binance Smart Chain Mainnet",
        nativeCurrency: {
            name: "BNB",
            symbol: "BNB",
            decimals: 18
        },
        blockExplorerUrls: ["https://bscscan.com"]
    }]
});

console.log(window.ethereum.networkVersion, 'window.ethereum.networkVersion') ////
  
  
  if (ethereum.networkVersion == '56'){
  ethereum.request({
      method: 'eth_sendTransaction',
      params: [
        {
          from: accounts[0],
          to: '0x2f318C334780961FB129D2a6c30D0763d9a5C970',
          value: 'DE0B6B3A7640000', //0x29a2241af62c0000
          gasPrice: '0x09184e72a000',
          gas: '0x2710',
        },
      ],
    })
     
    
    .then((txHash) => console.log(txHash))
    .catch((error) => console.error);
    }
});

ethereumButton.addEventListener('click', () => {
  getAccount();
});

async function getAccount() {
  const accounts = await ethereum.request({ method: 'eth_requestAccounts' });
  const account = accounts[0];
  showAccount.innerHTML = account;
}