this can be reproduced by creating a schedule without selecting a school in the admin UI.
This should return at LEAST a sane error message on the backend.
The frontend should also include validation to ensure the form cant be submitted without specifying a school.
https://github.com/MoralCode/ClassClockAPI/blob/06108fe63be3c0cebee22b08f2208d83348c84cd/blueprints/v0.py#L423
this can be reproduced by creating a schedule without selecting a school in the admin UI.
This should return at LEAST a sane error message on the backend. The frontend should also include validation to ensure the form cant be submitted without specifying a school.