Check /edx/var/log/lms/edx.log for the reason.
(c/o [https://groups.google.com/forum/#!topic/openedx-ops/bk4dvZRH1dk])
from analyticsclient.exceptions import ClientError
ImportError: No module named exceptionsTo fix, roll back to an old release version (in this case, v0.1.0):
sudo -u edxapp bash
source /edx/app/edxapp/venvs/edxapp/bin/activate
pip uninstall edx-analytics-api-client
pip install -e git+https://github.com/edx/[email protected]#egg=edx-analytics-data-api-client