Need help with Virtual Box error message

I have installed VirtualBox a while ago and It was working perfectly but recently I was trying to launch VirtualBox but an error message appeared instead, the message was:

Error:
Failed to create the VirtualBox COM object.
The application will now terminate.
Callee RC: 0x80040154
I have tried to reinstall VirtualBox version, upgrade the actual version and even get another version but the same problem occurred. I would really appreciate if you help me on this and thank you.
