Revise paste Google Sheet Sending Emails

function sendEmails() {
 const sheet = SpreadsheetApp.getActiveSpreadsheet().getActiveSheet();
 const data = sheet.getDataRange().getValues();
 
 for (let i = 0; i < data.length; i++) {
 const row = data[i];
 const email = row[0];
 const username = row[1];
 const password = row[2];

if (email) {
      const subject = "ICPC Minya — Creativa Wi-Fi Credentials";

const htmlMessage = `
 Dear Participant,

Welcome to the ICPC Minya session at Creativa Hub!

Here are your personal Wi-Fi credentials:
 <ul>
 <li>Username: ${username}</li>
 <li>Password: ${password}</li>
 </ul>

⚠️ Please note:
 <ul>
 <li>Do not share your credentials with anyone.</li>
 <li>Do not use hotspot or share your connection.</li>
 <li>Connect only on the device you’ll be using during the session.</li>
 </ul>

Best regards, 
 ICPC Minya Team
 `;

MailApp.sendEmail({
        to: email,
        subject: subject,
        htmlBody: htmlMessage
      });
    }
  }
}