error - impossible to open zotero

When I try to open zotero the following error message appears:
Database upgrade error

[Exception... "Component returned failure code: 0x80630001 (NS_ERROR_STORAGE_BUSY) [mozIStorageConnection.executeSimpleSQL]" nsresult: "0x80630001 (NS_ERROR_STORAGE_BUSY)" location: "JS frame :: chrome://zotero/content/xpcom/db.js :: Zotero.DBConnection.prototype.query :: line 149" data: no] [QUERY: DELETE FROM itemTypesCombined] [ERROR: database is locked]
  • after closing mozzila and trying to open zotero again error disappears
  • Do you mean that the issue has been resolved? If not, try restarting your computer.
  • I had the same problem and after disabling the Zotero extension in Firefox and restarting, my standalone version launched without error.
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