Only read OP’s first post.
The reason she has a timetable clash is down to HER module choices.
Usually you enrol as a student, then it is your responsibility to enrol on the individual modules relative to your course.
There are mandatory modules but, usually, also there is a choice for those remaining to make up your remaining credits to 120.
For instance when I was at Uni there were 2-3 mandatory of 20 - 30 credits each that I had to take, but for the remaining 60 credits I picked from a selection of 10 - 20 credit courses.
Timetable clashes can occur and it is up to the student to avoid these when planning their studies/timetable. Some are intent on particular courses despite clashes, and they choose to go for them anyway, even if it means that every week they have to choose between lectures on a Friday or whatever.
The University would not be able to run if all the modules offered were at separate times. Lecturers are working there on their own research and so forth, they have other commitments beyond lecturing and may only be available at certain times.
Finally, it is perfectly normal to have modules relevant to multiple courses, for instance you may have students from multiple courses taking part in a statistics module because it is something relevant to multiple degree pathways.
In short this problem is on your daughter for not being able to manage enrolment effectively and on you for not supporting her with the entitlement process if she has difficulty with this sort of thing.