When using OneNote for Mac version, MacBook Pro crashed. After rebooting MacBookPro, it reported Microsoft OneNote had caused the crash. Then every time when i open OneNote, app crashed immediately.
Reinstalling OneNote Mac app via Appstore or clearing caches, does not fix the issue. OneNote keeps crashing on start.
Solution:-
1. Delete the following folders on your Mac.
~/Library/Containers/com.microsoft.onenote.mac
~/Library/Group/Containers/UBF8T346G9.Office
2. On your Mac OS X, open “Keychain Access” app and search for “MicrosoftOffice”. If OneNote app recognized that you signed in, you’ll have entry with long name. Delete it.
3. Restart your Mac computer.
4. Then try to launch OneNote app and signing in again.
SEE ALSO : How to open OneNote for Windows files in OneNote for Mac
If you find any other solution to fix “OneNote for Mac crashes on start”, inform us via comment.

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My OneNote 2016 keeps crashing and I can't figure out why. I recently started a new notebook for the semester and I'm not exaggerating when I say that the notebook crashes a minimum of once every 10 minutes, usually every 5 minutes. OneNote for Mac lets you recover single pages or entire sections of notes that you have recently deleted. While viewing recently deleted notes, you can restore their pages or sections by moving them back to their original notebook or to another location you want. OneNote 2016 For Mac crashing frequently I was wondering if anyone had any insight or advice in regards to OneNote crashing so frequently. I am using a MacBook Pro (15 inch-2016) 2.7 GHz Intel Core i7 (Radeon Pro 460).