Status : 502 error.(Unable to load)

Hi All, I am getting following error message while doing any task in UI- Unable to to load Service/xas/status:502 After this error, I get the expected result when I refresh the page There are no errors in server logs. By the way, I'm accessing this application from all the the browser. Anyone encountered this or can anyone suggest a solution for this please.
1 answers

Does your app actually run? I most cases when you get a 502 error, the application is stopped and you cannot reach it as a result.