Solved VirtualBox "Unable to get Virtualbox COM object" error

[illumi]

Unable to retrieve VirtualBox object.

The application will now close.

Document is empty.

Location: 'C:\Users\bayra\.VirtualBox\VirtualBox.xml', line 1 (0), column 1.

F:\tinderbox\win-6.1\src\VBox\Main\src-server\VirtualBoxImpl.cpp[740] (long __cdecl VirtualBox: ?nit(Void)).

Result Code: E_FAIL (0x80004005) Component: VirtualBoxWrap Interface: IVirtualBox Called: IVirtualBoxClient

I am getting an error. What is the solution?