There isn't anything in the logs the indicates that there what happened. Do you have any other information?
** Changed in: ufw (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1909373 Title: package ufw 0.36-0ubuntu0.18.04.1 failed to install/upgrade: installed ufw package post-installation script subprocess returned error exit status 10 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ufw/+bug/1909373/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs