Thank you, it is some sort of bug in puppeteer/chrome. We will update puppeteer with the next jsreport release.
At this moment you can also just add the latest puppeteer dep to the app package.json, run npm i, restart jsreport and it should work.
{ "name": "jsreport-server", "main": "server.js", "scripts": { "start": "node server", "jsreport": "jsreport" }, "jsreport": { "entryPoint": "server.js" }, "dependencies": { "jsreport": "^4.2.0", "puppeteer": "21.10.0" } }