Camunda cockpit is not loading in the web browser

hi, I started my camunda using script. When I did that in previous days, loaded without any errors. But today I started my camunda and it navigated me to the http://localhost:8080/camunda-welcome/index.html as usual. On that page, I selected the cockpit window and it navigates to “http://localhost:8080/camunda/app/cockpit/default/#” and that page gives me an error like the below screenshot.

What may be the problem?

Have you looked into the logs?

yea i checked the logs but there were no logs. Then i restarted my laptop and i worked fine. I guess something must have gone wrong with the ports. Now it works fine.