Dear Jocit,
From the screenshots, it seems that the two screenshots are both from the OneNote app on your Android and the image shows in the notebook page normally on your Android for some time.
If yes, I suggest you check whether you are using the latest version number of the OneNote app and the operating system on your Android.
If no, I suggest you update them, restart Android and then do a test to see the outcome.
If yes, I suggest you check whether the issue happens in OneNote for the web on your Android. If no, I suggest you reset the credentials in Fix sync issues in OneNote for iOS or Android - Microsoft Support, restart Android and then open the notebook again to see the result.
If all above doesn't resolve the issue and if you aren't the administrator, I suggest you contact the administrator in your school and let him follow the steps in Get support - Microsoft 365 admin | Microsoft Learn to open a support ticket to our related team as soon as possible so that they can help you further investigate the issue and fix it in your environment from their side.
The administrator is always the first person who subscribes the Microsoft 365 business subscription or the IT administrator in your organization.
About admin roles in the Microsoft 365 admin center - Microsoft 365 admin | Microsoft Learn
How do I find my Microsoft 365 admin? - Microsoft Support
Meanwhile, you can also report the issue to them via the built-in Feedback option in the OneNote app on your Android as well.
How do I give feedback on Microsoft 365? - Microsoft Support
As the forum is public, I'd like you to confirm whether the screenshots you posted can be shared here directly. If yes, please add your confirmation. I'll remove them to protect your privacy if there is no confirmation from you after 24 hours.
Thank you for your effort and time!
Sincerely
Cliff | Microsoft Community Moderator