$ sudo apt --fix-broken install
Reading package lists...
Building dependency tree...
Reading state information...
The following package was automatically installed and is no longer required:
  pve-kernel-5.4.44-2-pve
Use 'sudo apt autoremove' to remove it.
0 upgraded, 0 newly installed, 0 to remove and 2 not upgraded.
11 not fully installed or removed.
Need to get 0 B/593 kB of archives.
After this operation, 0 B of additional disk space will be used.
Setting up python-lockfile (1:0.12.2-2) ...
Traceback (most recent call last):
  File "/usr/bin/pycompile", line 35, in <module>
    from debpython.version import SUPPORTED, debsorted, vrepr, \
  File "/usr/share/python/debpython/version.py", line 1
SyntaxError: Non-ASCII character '\x87' in file /usr/share/python/debpython/version.py on line 1, but no encoding declared; see http://python.org/dev/peps/pep-0263/ for details
dpkg: error processing package python-lockfile (--configure):
 installed python-lockfile package post-installation script subprocess returned error exit status 1
dpkg: error processing package python3 (--configure):
 package is in a very bad inconsistent state; you should
 reinstall it before attempting configuration
dpkg: dependency problems prevent configuration of ifupdown2:
 ifupdown2 depends on python3:any; however:
  Package python3 is not configured yet.

dpkg: error processing package ifupdown2 (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of python3-mock:
 python3-mock depends on python3:any; however:
  Package python3 is not configured yet.

dpkg: error processing package python3-mock (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of python3-acme:
 python3-acme depends on python3-mock; however:
  Package python3-mock is not configured yet.
 python3-acme depends on python3:any; however:
  Package python3 is not configured yet.

dpkg: error processing package python3-acme (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of python3-certbot:
 python3-certbot depends on python3-acme (>= 0.29.0~); however:
  Package python3-acme is not configured yet.
 python3-certbot depends on python3-mock; however:
  Package python3-mock is not configured yet.
 python3-certbot depends on python3:any; however:
  Package python3 is not configured yet.

dpkg: error processing package python3-certbot (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of python3-certbot-dns-cloudflare:
 python3-certbot-dns-cloudflare depends on python3-acme (>= 0.22.0~); however:
  Package python3-acme is not configured yet.
 python3-certbot-dns-cloudflare depends on python3-certbot (>= 0.22.0~); however:
  Package python3-certbot is not configured yet.
 python3-certbot-dns-cloudflare depends on python3-mock; however:
  Package python3-mock is not configured yet.
 python3-certbot-dns-cloudflare depends on python3:any (>= 3.3.2-2~); however:
  Package python3 is not configured yet.

dpkg: error processing package python3-certbot-dns-cloudflare (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of python3-setuptools:
 python3-setuptools depends on python3:any; however:
  Package python3 is not configured yet.

dpkg: error processing package python3-setuptools (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of python3-pbr:
 python3-pbr depends on python3-setuptools; however:
  Package python3-setuptools is not configured yet.
 python3-pbr depends on python3:any; however:
  Package python3 is not configured yet.

dpkg: error processing package python3-pbr (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of pve-manager:
 pve-manager depends on ifenslave (>= 2.6) | ifupdown2 (>= 2.0.1-1+pve8); however:
  Package ifenslave is not installed.
  Package ifupdown2 is not configured yet.

dpkg: error processing package pve-manager (--configure):
 dependency problems - leaving unconfigured
dpkg: dependency problems prevent configuration of proxmox-ve:
 proxmox-ve depends on pve-manager; however:
  Package pve-manager is not configured yet.

dpkg: error processing package proxmox-ve (--configure):
 dependency problems - leaving unconfigured
Errors were encountered while processing:
 python-lockfile
 python3
 ifupdown2
 python3-mock
 python3-acme
 python3-certbot
 python3-certbot-dns-cloudflare
 python3-setuptools
 python3-pbr
 pve-manager
 proxmox-ve