The password for '' could not be validated.
Check that you have entered the correct password and that the account is not disabled and has not expired.
Reason: The parameter is incorrect

This error is seen when the Enterprise Vault server alias entry in DNS is not updated to resolve to the current EV server host name. The updating of DNS is often missed when migrating EV to a new server.
Update the Alias (CNAME) record in DNS so that the EV server alias resolves to the new server host name.