This is not the place where we have to overwrite error message because the error message mentioned in screenshot https://edx-wiki.atlassian.net/browse/ORA-304 is created here: https://github.com/edx/edx-ora/blob/master/peer_grading/calibration.py#L180 on ORA side called from ```is_student_caliberated``` at this point: https://github.com/edx/edx-ora/blob/master/peer_grading/views.py#L221.

We should overwrite this error message here: https://github.com/edx/edx-platform/blob/master/common/lib/xmodule/xmodule/peer_grading_module.py#L404