I have installed virtual box from app manager and installed it on ubuntu 18. But i was uble to run any program on virtual box since it was giving a error.

**Kernel driver not installed (rc=-1908)**

To solve this problem i tried to reinstall it. During re-installation program was stuck at a point[for which i have not taken screen shot]. I waited for 5 to 10 minutes for program to finish. But it doesn't so i stopped it forcefully. After that whenever i am trying to uninstall or configure this virtual box i am getting stuck at this point shown in picture. Program is not going future [program is stuck hear](https://i.stack.imgur.com/aTp5g.png). What to do??