The operation couldn’t be completed. (SimpleumCoreMacOS.KeychainPasswordItem.Keychain error 0.)If you have denied the access to the keychain and want to change it now, use the following steps:Close SimpleumSafeStart the “Terminal” ProgramEnter the following command: security delete-generic-password -l worksparse.sparsebundle Start SimpleumSafe again. Now you will be prompted again to allow access to the keychain. Confirm with your Mac system password.