socket.io/?EIO=4&transport=polling&t=Oxbsu25 502 (Bad Gateway)

Hello Community,

I am trying to write standard script report.

I done some changes as per my requirement in shift_attendance.py and created a new file shift_attendance.html.

It was working fine but suddenly got this error.

This is a background report. Please set the appropriate filters and then generate a new one.

Update :

Got hint from here.

Uncheck Enable Prepared Report

And now its working.