When try to start a virtual machine I get these error messages:
The virtual machine has terminated unexpectedly during startup with exit code 1 (0x1). NS_ERROR_FAILURE
Kernel driver not installed: The Virtualbox Linux kernel driver (vboxdrv) is either not loaded or there is a permission problem with /dev/vboxdrv. Please reinstall the kernel module by executing '/sbin/vboxconfig' as root. VERR_VM_DRIVER_NOT_INSTALLED (-1908)