At last VirtualBox of Oracle released version 5.2.22 which works properly with the Windows 1809 or otherwise with the October 2018 issue.
With the October 1809 update of Windows 10 the free program Oracle's VirtualBox 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 from the first moment. But it took a whole month for Oracle to release a working version. So VirtualBox version 5.2.22 no longer has any issues, so the users of Windows 1809 should be upgraded.
Logically, if you run your VB, it will notify you of the existence of 5.2.22, so proceed to download and install it. If he does not 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 application problems but had no effect on the latest Windows 1809. It seems that this version was almost ready to be released and at the same time seeing that Windows 1809 they had a failed one appearance, with a bunch of problems that led to their recall, so Oracle engineers proceeded to release it, 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.
