My Suite CRM is a blank page

can someone please visit. and tell me why the page is blank? There is a full istalation of suite crm there that has been working fine for about 1 year.

I think there might be an issue with the database username. Which files need to be updated if the database username changes?

You need to set the new user name in config.php

And the logs you should be checking are not the browser logs, but rather suitecrm.log and php_errors.log (your web server log).