why i cannot start timed exam? How can i solve?
lms-1 | response = get_response(request)
lms-1 | ^^^^^^^^^^^^^^^^^^^^^
lms-1 | File “/openedx/venv/lib/python3.11/site-packages/django/core/handlers/base.py”, line 197, in
lms-1 | response = wrapped_callback(request, *callback_args, **callback_kwargs)
lms-1 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
lms-1 | File “/opt/pyenv/versions/3.11.8/lib/python3.11/contextlib.py”, line 81, in inner
lms-1 | return func(*args, **kwds)
lms-1 | ^^^^^^^^^^^^^^^^^^^
lms-1 | File “/openedx/venv/lib/python3.11/site-packages/django/views/decorators/csrf.py”, line 56,
lms-1 | return view_func(*args, **kwargs)
lms-1 | ^^^^^^^^^^^^^^^^^^^^^^^^^^
lms-1 | File “/openedx/venv/lib/python3.11/site-packages/django/views/generic/base.py”, line 104, in
lms-1 | return self.dispatch(request, *args, **kwargs)
lms-1 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
lms-1 | File “/openedx/venv/lib/python3.11/site-packages/rest_framework/views.py”, line 509, in disp
lms-1 | response = self.handle_exception(exc)
lms-1 | ^^^^^^^^^^^^^^^^^^^^^^^^^^
lms-1 | File “/openedx/venv/lib/python3.11/site-packages/edx_proctoring/views.py”, line 196, in hand
lms-1 | resp = super().handle_exception(exc)
lms-1 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
lms-1 | File “/openedx/venv/lib/python3.11/site-packages/rest_framework/views.py”, line 469, in hand
lms-1 | self.raise_uncaught_exception(exc)
lms-1 | File “/openedx/venv/lib/python3.11/site-packages/rest_framework/views.py”, line 480, in rais
lms-1 | raise exc
lms-1 | File “/openedx/venv/lib/python3.11/site-packages/rest_framework/views.py”, line 506, in disp
lms-1 | response = handler(request, *args, **kwargs)
lms-1 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
lms-1 | File “/openedx/venv/lib/python3.11/site-packages/edx_proctoring/views.py”, line 1538, in pos
lms-1 | start_exam_attempt(exam_id, user_id)
lms-1 | File “/openedx/venv/lib/python3.11/site-packages/edx_proctoring/api.py”, line 1190, in start
lms-1 | return _start_exam_attempt(existing_attempt)
lms-1 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
lms-1 | File “/openedx/venv/lib/python3.11/site-packages/edx_proctoring/api.py”, line 1226, in _star
lms-1 | update_attempt_status(
lms-1 | File “/openedx/venv/lib/python3.11/site-packages/edx_proctoring/api.py”, line 1648, in updat
lms-1 | credit_state = credit_service.get_credit_state(
lms-1 | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
lms-1 | AttributeError: ‘NoneType’ object has no attribute ‘get_credit_state’
lms-1 | [pid: 26|app: 0|req: 830/1995] 172.18.0.3 () {68 vars in 2655 bytes} [Tue Sep 30 09:23:15 2025witches on core 0)