A family of Microsoft products that enable users to capture, organize, and reuse notes electronically.
Hi, MiroZZZZ
Welcome to the Microsoft Community for sharing your issue, I understand that your One Note preview card was deleted trying to retrieve the linked notes, I'm sorry to hear this and sympathize with your loss. While the Microsoft Community only provides technical support for the software and no community member has access to the server's back-end data to help you recover your data, I will do what I can to help you.
Before we can help you troubleshoot, we need to ask you a question.
By preview cards do you mean pages in OneNote?
If so, you can refer to the following steps to help you retrieve your lost pages
You may refer to:Recover deleted notes - Microsoft Support
If you have backed up you can try to restore the backup
If you still can't find your file after trying the steps above, we recommend that you contact OneDrive's support team to help you locate your file data in OneDrive's cloud servers, and they can help you access the data information and view it at a higher level. You can send an email to OneDrive at the following link
https://go.microsoft.com/fwlink/p/?LinkId=528676
I sincerely hope that you will be able to retrieve your files and please feel free to contact us if you need further assistance. Thank you for your understanding and patience, I look forward to hearing from you!
Allen L- MSFT | Microsoft Community Support Specialist