User canceled primary password entry
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Upgrade Storage
Have you used Zotero previously on this Mac, or have you transferred files from another Mac where you used it?
Can you make a ZIP of your Zotero profile folder and email it to support@zotero.org with a link to this thread?
After that, try deleting key4.db and logins.json and then restarting Zotero. But please do send first if you can.