Callee RC: NS_ERROR_FACTORY_NOT_REGISTERED (0×80040154)

Answer :

You have to make 3 steps :

1-Check if dkms installed

yum install dkms

2- do this command under root :

find /usr/lib/virtualbox -maxdepth 1 -name '*.so' -exec ln -s {} /usr/lib/virtualbox/components/ ;

3- changes some folders permission

chown root.root /tmp

chmod ug-s /tmp

chmod 1777 /tmp