Per the direction provided by https://bugs.launchpad.net/ubuntu/+bug/1978398/comments/1, I added "acpi" and "linux" project associations (the former being my best guess as to the source of this error, the latter being specifically requested by https://wiki.ubuntu.com/DebuggingACPI#Filing_a_Bug_Report).
Per the direction provided by https:/ /bugs.launchpad .net/ubuntu/ +bug/1978398/ comments/ 1, I added "acpi" and "linux" project associations (the former being my best guess as to the source of this error, the latter being specifically requested by https:/ /wiki.ubuntu. com/DebuggingAC PI#Filing_ a_Bug_Report).