Cleared my onenote cache to free up space on my mac (by deleting all the ".bin" files), and now app won't open. I uninstalled and re-downloaded it, but still refuses to open. Gives a pop-up that reads:
"MS OneNote wants to use your confidential information stored in your keychain, To allow this, enter the login keychain password" No idea what that password is or meant to be.
EDIT: Ok new problem - app has opened after deleting all onenote folders and re-downloading. But now I can't open any of my old notebooks. They appear fine on the onenote browser, just refuses to open on the desktop app