Finally her VirtualBox Oracle released version 5.2.22 which works properly with Windows 1809 or otherwise October 2018 version.
With the release of information 1809 in October of Windows 10 Oracle's free VirtualBox program could not start the virtual machines, whether they were old or if you were creating new ones.
IGuRu had it points out in a relevant article its from the first moment. But it took a whole month for Oracle to release a working version. So version 5.2.22 of VirtualBox is no longer a problem, so Windows 1809 users will need to upgrade.
Logically, if you run your VB, it will notify you of the existence of 5.2.22, so proceed to downloading and in its installation. If it doesn't notify you then download it from here.
The strange thing though is that in the interim the Oracle people released a version, 5.2, which fixed earlier problems of applications but it had no effect on the latest Windows 1809. It seems that this version was almost ready to be introduced and at the same time seeing that Windows 1809 had a failed appearance, with a bunch of problems that caused it to be recalled, so the Oracle engineers moved on at its release, waiting for Windows to release a pre-release version.
However, those who had downloaded 1809 from the beginning waited a month to see the virtual machines work again.