If you see an error message, please ensure that you:
- Disable pop-ups or ad blockers on your browser.
- Close all browser tabs.
- Go to the platform's home dashboard.
- Press Ctrl + Shift + R (Windows) / Cmd + Shift + R (Mac).
- Open the desired notebook.
If the message still appears, press Ctrl + Shift + R (Windows) / Cmd + Shift + R (Mac) again on the notebook.
If the issue persists, you can switch to private browsing.
⚠️ It is strongly recommended not to leave your session open and inactive for a long period.
⚠️ Log out when you have finished your exercises and exams to avoid the previously mentioned problem.