The error why this happens is if you install virtualbox with a user that is admin but not the super user.
Cause of Failure:
This problem is usually caused by errors in the PHP configuration file. Generally, VirtualBox should run as your custom superuser, but for unknown reasons, the superuser in the configuration file has been mistakenly changed to root. The specific reason for the problem is still under investigation.
if you install it with the super user it will work
Statistics: Posted by star — Yesterday, 21:33