Load testing on Amazon servers

Hello, I have some issue in load testing of web app with vaadin components. I use for loacall testing Jmeter version 5.2.1, and there is not problem with selenium integration.There are used functions like “WDS.browser.findElement(pkg.By.xpath(…))” , and locally I see everything is working. But there is problem, when load test is running on some Amazon servers like Redline13, because everytime I got error like this:
Is not there any problem with Vaadin components? Becasue other web app’s does not have this issue and everything is working.