Error msg="process with PID 68 unexpectedly ended: signal: killed" category=browser elapsed="0 ms" source=browser

Hello,

I am trying to run front end load test with 100 users but it is encountering the following errors

level=error msg=“Uncaught (in promise) waiting for navigation: timed out after 1m0s” executor=constant-vus scenario=ui

level=error msg=“process with PID 68 unexpectedly ended: signal: killed” category=browser elapsed=“0 ms” source=browser

The scenario I want to test involves a user logging in and then remaining idle for 60 minutes. I am attempting to run this with 100 users, but it is failing.

Note: The script works as expected with 10 users, but it fails when the number of users exceeds 10.

Kindly find the script I am using for this scenario and provide a solution.

 import { browser } from 'k6/experimental/browser';
 import { SharedArray } from 'k6/data';
 import { check, sleep } from 'k6';

 import  papaparse  from './testData/papaparse.js';
 
const userNames = new SharedArray('teamManager_users', function () {
       return papaparse.parse(open('./testData/mrUserNames.csv'), { header: true }).data;
 });

 const randomUser = userNames[Math.floor(Math.random() * userNames.length)];
 const mrTeamManagerUser = randomUser.Teammanager_User

 export const options = {
   scenarios: {
     ui: {
       executor: 'constant-vus',
       vus: 100,
       duration: '1h15m',
       options: {
         browser: {
           type: 'chromium',
         },
       },
     },
   },
   thresholds: {
     checks: ['rate==1.0'],
   },
 };
 
export default async function() {
     const page = await browser.newPage();
 
    try{
         await page.goto('https://abcd.com');
         await page.locator('#txtUserID').fill(mrTeamManagerUser)
         await page.locator('#txtPassword').type('@Rules1#')
        const loginButton = page.locator("#sub");
            await Promise.all([page.waitForNavigation({
              timeout: 60000
            }), loginButton.click()]);
 
    await page.waitForSelector('div.content-item.content-field.item-1 h2', { timeout: 10000 });

     const h2Elements = await page.evaluate(() => {
         return Array.from(document.querySelectorAll('h2')).map(el => el.textContent);
     });

 //    console.log('All H2 Texts:', h2Elements);
 
    const worklistText = h2Elements.find(text => text.includes('Worklist for '));
 //    console.log('Extracted Worklist Text:', worklistText);
 
    check(worklistText, {
         'Worklist text is correct': (text) => text !== undefined,
     });

      sleep(3600);
 
        const loginPage = page.locator('#login'); 
         check(loginPage, {
             'Navigated to login page after logout': (el) => el.isVisible(),
         });
 
    } finally {
        await page.close()
     }
 }```