package apparmor 2.12-4ubuntu5.3 failed to install/upgrade: new apparmor package pre-installation script subprocess returned error exit status 1

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ProblemType: Package
DistroRelease: Ubuntu 20.04
Package: apparmor 2.12-4ubuntu5.3
ProcVersionSignature: Ubuntu 5.4.0-159.176-generic 5.4.241
Uname: Linux 5.4.0-159-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.27
Architecture: amd64
CasperMD5CheckResult: skip
Date: Mon Sep 4 12:07:44 2023
DuplicateSignature:
 package:apparmor:2.12-4ubuntu5.3
 Preparing to unpack .../09-apparmor_2.13.3-7ubuntu5.2_amd64.deb ...
 rm: cannot remove '/etc/apparmor.d/cache/e10c1cf9.0': Is a directory
 dpkg: error processing archive /tmp/apt-dpkg-install-RP1aSv/09-apparmor_2.13.3-7ubuntu5.2_amd64.deb (--unpack):
  new apparmor package pre-installation script subprocess returned error exit status 1
ErrorMessage: new apparmor package pre-installation script subprocess returned error exit status 1
InstallationDate: Installed on 2023-03-14 (174 days ago)
InstallationMedia: Ubuntu 18.04.6 LTS "Bionic Beaver" - Release amd64 (20210915)
ProcKernelCmdline: BOOT_IMAGE=/boot/vmlinuz-5.4.0-159-generic root=UUID=213e3ed9-7e53-4ef8-885d-7e58e7fd651f ro quiet splash vt.handoff=7
Python3Details: /usr/bin/python3.8, Python 3.8.10, python3-minimal, 3.8.2-0ubuntu2
PythonDetails: /usr/bin/python2.7, Python 2.7.18, python-is-python2, 2.7.17-4
RelatedPackageVersions:
 dpkg 1.19.7ubuntu3.2
 apt 2.0.9
SourcePackage: apparmor
Title: package apparmor 2.12-4ubuntu5.3 failed to install/upgrade: new apparmor package pre-installation script subprocess returned error exit status 1
UpgradeStatus: Upgraded to focal on 2023-09-04 (0 days ago)