bcmwl-kernel-source 6.30.223.271+bdcom-0ubuntu6: bcmwl kernel module failed to build

[apt-ghetto]

Output from apt full-upgrade

bcmwl-kernel-source (6.30.223.271+bdcom-0ubuntu6) wird eingerichtet ...
Removing old bcmwl-6.30.223.271+bdcom DKMS files...

------------------------------
Deleting module version: 6.30.223.271+bdcom
completely from the DKMS tree.
------------------------------
Done.
Loading new bcmwl-6.30.223.271+bdcom DKMS files...
Building for 5.4.0-26-generic
Building for architecture x86_64
Building initial module for 5.4.0-26-generic
ERROR: Cannot create report: [Errno 17] File exists: '/var/crash/bcmwl-kernel-source.0.crash'
Error! Application of patch 0028-add-support-for-linux-5.6.patch failed.
Check /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/ for more information.
dpkg: Fehler beim Bearbeiten des Paketes bcmwl-kernel-source (--configure):
 »installiertes bcmwl-kernel-source-Skript des Paketes post-installation«-Unterprozess gab den Fehlerwert 6 zurück
Fehler traten auf beim Bearbeiten von:
 bcmwl-kernel-source
E: Sub-process /usr/bin/dpkg returned an error code (1)

Lubuntu 20.10

ProblemType: Package
DistroRelease: Ubuntu 20.10
Package: bcmwl-kernel-source 6.30.223.271+bdcom-0ubuntu6
ProcVersionSignature: Ubuntu 5.4.0-26.30-generic 5.4.30
Uname: Linux 5.4.0-26-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.20.11-0ubuntu32
Architecture: amd64
CasperMD5CheckResult: skip
DKMSKernelVersion: 5.4.0-26-generic
Date: Thu May 7 17:39:25 2020
InstallationDate: Installed on 2019-09-21 (229 days ago)
InstallationMedia: Lubuntu 19.10 "Eoan Ermine" - Alpha amd64 (20190920)
PackageVersion: 6.30.223.271+bdcom-0ubuntu6
Python3Details: /usr/bin/python3.8, Python 3.8.2, python3-minimal, 3.8.2-0ubuntu2
PythonDetails: N/A
RelatedPackageVersions:
 dpkg 1.19.7ubuntu3
 apt 2.0.2
SourcePackage: bcmwl
Title: bcmwl-kernel-source 6.30.223.271+bdcom-0ubuntu6: bcmwl kernel module failed to build
UpgradeStatus: No upgrade log present (probably fresh install)