How to get score from LTI provider?

Hi, I have an issue I searched a lot about reading score/grade from LTI to open-edx. but unfortunately, I did not get any answer How to get a score from the LTI provider? is there any other configuration? Anyone help me plz.

open-edx version: Hawthorn
I followed all these solutions:

this this error shown

[outcomes.py:169] - /edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/lti_consumer/outcomes.py:169: DeprecationWarning: BaseException.message has been deprecated as of Python 2.6
error_message = “Request body XML parsing error: {} {}”.format(ex.message, body)

Does anyone have any idea about this error?