If you wish to report an issue in our course material, it is very helpful if you can tell us the exact ID of the exercise/theory page where you noticed the issue. Here is how you can find the IDs.
The exercise ID tag
When you open an exercise, the exercise ID tag will be next to the exercise title.
The URL of the page
On the platform's home page, open the exercise or theory page. In the URL, see the digits after "/content/package/" or "/content/theory/". Those digits are the ID of the material
When you open an exercise, you can find the Package ID (of the package to which the exercise belongs to):
When you open a theory page, you will see the theory page ID:
In the exercise on the home page
If you have Author access to the exercise, you will be able to see the exercise ID next to its name when you open it on the home page:
Exam ID
Exam ID can be found under "Author", "Exam", on the left side of the screen in the column "ID".