Hi Rakesh
can you please check the Token in setting.py CSRF_TRUSTED_ORIGINS should not mentioned multiple times. Which may lead to overriding the previous settings.
You can see the fix here: https://github.com/KafetzisThomas/Chatterbox/commit/97935ca3ca7bc3fd859b7a941945eff5f49cab07
if you have any further concerns or queries, please feel free to reach out to us.