You've never synced this account, and it contains no data.
Note that an account isn't required to use Zotero, so it's entirely possible you were just using Zotero locally without syncing. If you have other email addresses, you can try logging in or resetting your password with those, but otherwise your data would be on the computer where you last used Zotero.
Upgrade Storage
Note that an account isn't required to use Zotero, so it's entirely possible you were just using Zotero locally without syncing. If you have other email addresses, you can try logging in or resetting your password with those, but otherwise your data would be on the computer where you last used Zotero.