sudo apt --purge linux-modules-4.15.0-91-generic

Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be REMOVED:
  linux-modules-4.15.0-91-generic*
0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded.
7 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n] y
Setting up initramfs-tools (0.130ubuntu3.9) ...
update-initramfs: deferring update (trigger activated)
Setting up linux-image-4.15.0-109-generic (4.15.0-109.110) ...
Setting up linux-image-4.15.0-108-generic (4.15.0-108.109) ...
Setting up linux-firmware (1.173.19) ...
update-initramfs: Generating /boot/initrd.img-4.15.0-109-generic
Fatal: open /boot/vmlinuz-4.15.0-76-generic: No such file or directory
run-parts: /etc/initramfs/post-update.d//runlilo exited with return code 1
dpkg: error processing package linux-firmware (--configure):
 installed linux-firmware package post-installation script subprocess returned error exit status 1
dpkg: dependency problems prevent configuration of linux-image-generic:
 linux-image-generic depends on linux-firmware; however:
  Package linux-firmware is not configured yet.

dpkg: error processing package linux-image-generic (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of linux-generic:
 linux-generic depends on linux-image-generic (= 4.15.0.109.97); however:
  Package linux-image-generic is not configured yet.

dpkg: error processing package linux-generic (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of linux-signed-generic:
 linux-signed-generic depends on linux-generic; however:
  Package linux-generic is not configured yet.

dpkg: error processing pacNo apport report written because the error message indicates its a followup error from a previous failure.
                                      No apport report written because the error message indicates its a followup error from a previous failure.
                                                  No apport report written because MaxReports is reached already
                  kage linux-signed-generic (--configure):
 dependency problems - leaving unconfigured
Errors were encountered while processing:
 linux-firmware
 linux-image-generic
 linux-generic
 linux-signed-generic
E: Sub-process /usr/bin/dpkg returned an error code (1)