proxmox mail garteway deletion lead to initramfs failed

[MajRonin]

Hello,

I'm encountering an issue after removing proxmox-mail-gateway i guess : I am trying to install some packages like btop for example and i get this issue :

root@pbs1:~# apt install --fix-broken
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
The following packages will be REMOVED:
  pve-kernel-5.15.158-2-pve
0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded.
2 not fully installed or removed.
After this operation, 400 MB disk space will be freed.
Do you want to continue? [Y/n] y
(Reading database ... 51638 files and directories currently installed.)
Removing pve-kernel-5.15.158-2-pve (5.15.158-2) ...
Examining /etc/kernel/postrm.d.
run-parts: executing /etc/kernel/postrm.d/initramfs-tools 5.15.158-2-pve /boot/vmlinuz-5.15.158-2-pve
update-initramfs: Deleting /boot/initrd.img-5.15.158-2-pve
run-parts: executing /etc/kernel/postrm.d/proxmox-auto-removal 5.15.158-2-pve /boot/vmlinuz-5.15.158-2-pve
/etc/kernel/postrm.d/proxmox-auto-removal: 4: .: cannot open /usr/share/proxmox-kernel-helper/scripts/functions: No such file
run-parts: /etc/kernel/postrm.d/proxmox-auto-removal exited with return code 2
Failed to process /etc/kernel/postrm.d at /var/lib/dpkg/info/pve-kernel-5.15.158-2-pve.postrm line 14.
dpkg: error processing package pve-kernel-5.15.158-2-pve (--remove):
 installed pve-kernel-5.15.158-2-pve package post-removal script subprocess returned error exit status 1
dpkg: too many errors, stopping
Errors were encountered while processing:
 pve-kernel-5.15.158-2-pve
Processing was halted because there were too many errors.
E: Sub-process /usr/bin/dpkg returned an error code (1)
root@pbs1:~#

I verified, i'm in UEFI mode in case of asking.

I don't rellay konw what to do and a bit loss into this mess i created by removing this (needed ?) package...

Thank you all in advance.