Error When Updating Jxself's Linux-Libre Package

HellO!

Apologies if this is the wrong place to post this, but since jxself is active in these forums I found it to be fitting as a way to get support.

When updating the linux-libre-5.4 package, I get the following error:

Do you want to continue? [Y/n] y
Setting up linux-libre-5.4 (5.4.12) ...
/var/lib/dpkg/info/linux-libre-5.4.postinst: 2: /var/lib/dpkg/info/linux-libre-5.4.postinst: SPDX-License-Identifier:: not found
/var/lib/dpkg/info/linux-libre-5.4.postinst: 3: /var/lib/dpkg/info/linux-libre-5.4.postinst: Please: not found
/var/lib/dpkg/info/linux-libre-5.4.postinst: 12: /var/lib/dpkg/info/linux-libre-5.4.postinst: cannot create linux-libre-5.4/DEBIAN/postinst: Directory nonexistent
dpkg: error processing package linux-libre-5.4 (--configure):
subprocess installed post-installation script returned error exit status 2
Errors were encountered while processing:
linux-libre-5.4
E: Sub-process /usr/bin/dpkg returned an error code (1)

It seems that the package was still installed, and that the problem seems to be that a license file could not be found -- correct me if I am wrong.

Any help is appreciated.

Thanks!