How to fix virtualbox that doesn't start(Missing packages)

Reading profile /etc/firejail/virtualbox.profile
Reading profile /etc/firejail/disable-common.inc
Reading profile /etc/firejail/disable-passwdmgr.inc
Reading profile /etc/firejail/disable-programs.inc
Reading profile /etc/firejail/whitelist-common.inc
Reading profile /etc/firejail/whitelist-var-common.inc
Parent pid 9709, child pid 9710
Child process initialized in 284.93 ms
WARNING: The character device /dev/vboxdrv does not exist.
     Please install the virtualbox-dkms package and the appropriate
     headers, most likely linux-headers-28t.

     You will not be able to start VMs until this problem is fixed.

Solution:
apt-get update
apt-get install linux-headers-$(uname -r)
dpkg-reconfigure virtualbox-dkms
modprobe vboxdrv

if the above solution doesn't work, you can try booting into the BIOS and going > advanced (f7) > boot > scroll down to "secure boot" > change "Windows EUFI mode" to "other OS"

problem should be fixed.