Hi @Austėja Grinytė
Is 'note pad library' content library belongs to Class Notebooks?
If so, I suggest you post a new thread in [Microsoft Answers Community] (https://answers.microsoft.com/en-us/msteams/forum/msteams_TfE-msteams_noteb?sort=LastReplyDate&dir=Desc&tab=All&status=all&mod=&modAge=&advFil=&postedAfter=&postedBefore=&threadType=All&isFilterExpanded=true&page=1).
Thanks for your understanding.
If note, it is general notebooks, currently, please check whether the article is helpful, "Recover deleted notes".
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