❌ Xəta baş verdi: (psycopg2.errors.UndefinedColumn) column exam.course_id does not exist LINE 1: ...m_classroom_id, exam.is_system AS exam_is_system, exam.cours... ^ [SQL: SELECT exam.id AS exam_id, exam.title AS exam_title, exam.plan_required AS exam_plan_required, exam.status AS exam_status, exam.duration_minutes AS exam_duration_minutes, exam.parent_topic_id AS exam_parent_topic_id, exam.teacher_id AS exam_teacher_id, exam.classroom_id AS exam_classroom_id, exam.is_system AS exam_is_system, exam.course_id AS exam_course_id, exam.course_subject AS exam_course_subject FROM exam] (Background on this error at: https://sqlalche.me/e/20/f405)