Cannot install Apps on 6.8.0

I have the exact same issue with 6.8.0, I can't install or uninstall apps.  Looking at dpkg.log it looks like it could be related to cacti.

If I try to uninstall:

2017-08-16 06:30:03 startup packages configure
2017-08-16 06:30:03 configure cacti:all 0.8.8b+dfsg-8+deb8u6 <none>
2017-08-16 06:30:03 status half-configured cacti:all 0.8.8b+dfsg-8+deb8u6

And if I try to install (Plex):  (I get the dashboard error Cannot install application plexmediaserver-ros6-binaries. )

2017-08-16 06:31:09 startup packages configure
2017-08-16 06:31:09 configure cacti:all 0.8.8b+dfsg-8+deb8u6 <none>
2017-08-16 06:31:09 status half-configured cacti:all 0.8.8b+dfsg-8+deb8u6
2017-08-16 06:31:12 startup archives unpack
2017-08-16 06:31:12 install plexmediaserver-ros6-binaries:amd64 <none> 1.8.1.4139-c789b3fbb
2017-08-16 06:31:12 status half-installed plexmediaserver-ros6-binaries:amd64 1.8.1.4139-c789b3fbb
2017-08-16 06:31:44 status unpacked plexmediaserver-ros6-binaries:amd64 1.8.1.4139-c789b3fbb
2017-08-16 06:31:44 status unpacked plexmediaserver-ros6-binaries:amd64 1.8.1.4139-c789b3fbb
2017-08-16 06:31:44 startup packages configure
2017-08-16 06:31:44 configure cacti:all 0.8.8b+dfsg-8+deb8u6 <none>
2017-08-16 06:31:44 status half-configured cacti:all 0.8.8b+dfsg-8+deb8u6
2017-08-16 06:31:44 configure plexmediaserver-ros6-binaries:amd64 1.8.1.4139-c789b3fbb <none>
2017-08-16 06:31:44 status unpacked plexmediaserver-ros6-binaries:amd64 1.8.1.4139-c789b3fbb
2017-08-16 06:31:44 status half-configured plexmediaserver-ros6-binaries:amd64 1.8.1.4139-c789b3fbb
2017-08-16 06:31:53 status installed plexmediaserver-ros6-binaries:amd64 1.8.1.4139-c789b3fbb
2017-08-16 06:31:53 status triggers-pending libc-bin:amd64 2.19-18+deb8u10.netgear1
2017-08-16 06:31:54 trigproc libc-bin:amd64 2.19-18+deb8u10.netgear1 <none>
2017-08-16 06:31:54 status half-configured libc-bin:amd64 2.19-18+deb8u10.netgear1
2017-08-16 06:31:54 status installed libc-bin:amd64 2.19-18+deb8u10.netgear1
2017-08-16 06:31:54 startup packages purge
2017-08-16 06:31:54 status installed plexmediaserver-ros6-binaries:amd64 1.8.1.4139-c789b3fbb
2017-08-16 06:31:54 remove plexmediaserver-ros6-binaries:amd64 1.8.1.4139-c789b3fbb <none>
2017-08-16 06:31:54 status half-configured plexmediaserver-ros6-binaries:amd64 1.8.1.4139-c789b3fbb
2017-08-16 06:31:55 status half-installed plexmediaserver-ros6-binaries:amd64 1.8.1.4139-c789b3fbb
2017-08-16 06:31:55 status triggers-pending libc-bin:amd64 2.19-18+deb8u10.netgear1
2017-08-16 06:31:55 status config-files plexmediaserver-ros6-binaries:amd64 1.8.1.4139-c789b3fbb
2017-08-16 06:31:55 purge plexmediaserver-ros6-binaries:amd64 1.8.1.4139-c789b3fbb <none>
2017-08-16 06:31:55 status config-files plexmediaserver-ros6-binaries:amd64 1.8.1.4139-c789b3fbb
2017-08-16 06:31:57 status config-files plexmediaserver-ros6-binaries:amd64 1.8.1.4139-c789b3fbb
2017-08-16 06:31:57 status config-files plexmediaserver-ros6-binaries:amd64 1.8.1.4139-c789b3fbb
2017-08-16 06:31:58 status config-files plexmediaserver-ros6-binaries:amd64 1.8.1.4139-c789b3fbb
2017-08-16 06:31:58 status config-files plexmediaserver-ros6-binaries:amd64 1.8.1.4139-c789b3fbb
2017-08-16 06:31:58 status not-installed plexmediaserver-ros6-binaries:amd64 <none>
2017-08-16 06:31:58 trigproc libc-bin:amd64 2.19-18+deb8u10.netgear1 <none>
2017-08-16 06:31:58 status half-configured libc-bin:amd64 2.19-18+deb8u10.netgear1
2017-08-16 06:31:58 status installed libc-bin:amd64 2.19-18+deb8u10.netgear1
2017-08-16 06:31:58 startup packages configure
2017-08-16 06:31:58 configure cacti:all 0.8.8b+dfsg-8+deb8u6 <none>
2017-08-16 06:31:58 status half-configured cacti:all 0.8.8b+dfsg-8+deb8u6