package cracklib-runtime 2.9.2-1ubuntu1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 127

[Jeff Bright]

We had some problems and the system wouldn't load at all. We went back to an earlier version and removed some things and that worked. I couldn't tell you what I did. e were afraid to update or install but did. Once again we are told there is a problem. I have no idea what to do. I would just like to be able to use this.

Thank you

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: cracklib-runtime 2.9.2-1ubuntu1
ProcVersionSignature: Ubuntu 4.4.0-146.172-generic 4.4.177
Uname: Linux 4.4.0-146-generic i686
ApportVersion: 2.20.1-0ubuntu2.18
Architecture: i386
Date: Sun Jan 10 12:20:25 2021
DuplicateSignature:
 package:cracklib-runtime:2.9.2-1ubuntu1
 Processing triggers for cracklib-runtime (2.9.2-1ubuntu1) ...
 /var/lib/dpkg/info/cracklib-runtime.postinst: 7: /var/lib/dpkg/info/cracklib-runtime.postinst: update-cracklib: not found
 dpkg: error processing package cracklib-runtime (--unpack):
  subprocess installed post-installation script returned error exit status 127
ErrorMessage: subprocess installed post-installation script returned error exit status 127
InstallationDate: Installed on 2012-05-10 (3166 days ago)
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386 (20120423)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.5
 apt 1.2.31
SourcePackage: cracklib2
Title: package cracklib-runtime 2.9.2-1ubuntu1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 127
UpgradeStatus: No upgrade log present (probably fresh install)