Not to worry! Remember, your instructor has access to your work regardless of whether it stays on Wikipedia.

If your work is removed by another editor, it is your responsibility to open a dialogue with that editor about why the work was removed.

Do not add anything back until you understand why it was removed and how you can fix it. If you do add removed work back without going through these steps, it will be seen as an "edit war" and your account could be blocked.