Yes. I have included them now.
handler400 = ‘django.views.defaults.bad_request’
handler403 = ‘django.views.defaults.permission_denied’
handler404 = ‘[django.views.defaults.page_not_found’
handler500 = ‘django.views.defaults.server_error’.
Usually that error comes once in a day at some time. If I get it again, I will let you know.
Obviously this will give an error.
Also, let us know even if you didn’t get the error.
While pasting it , it was showing as a link in this forum. While I removed it , it came as a [. Currently, I am not getting the error.
It’s because it’s not formatted correctly. Use “```”
at both ends of the code when posting.
It was fixed and everything works fine?
After including those statements, no error has come so far.
You can mark this conversation as solved if everything is fine now. 
While error won’t appear anymore, because of 400 error handling view, there still might be some mis-configuration in frontend side.
The HTTP 400 Bad Request client error response status code indicates that the server would not process the request due to something the server considered to be a client error. The reason for a 400 response is typically due to
I will check it until this evening and then mark it.
Hope everything works fine.
Yes. After including them , the error has gone.
Nice. A________ 
..________Z.