Comment 4 for bug 1450622

Pipelight 0.2.7.3 is soon a year old. This version does no longer work as the embedded plugin urls are outdated and there is no way to use the update command any more. The PGP key which was used to sign the plugin database for Pipelight 0.2.7.3 expired in the mean time and you will need to update to a more recent Pipelight version. There are already plenty of other FreeBSD users running into the same problem because the version in ports is outdated.

You can either convince the maintainer of the ports package to update the package or compile pipelight on your own (http://pipelight.net/cms/install/compile-pipelight.html). If you use the prebuilt win32 binaries, you only need g++, libx11 and gmake to compile pipelight, which should be too difficult. Just make sure to download 0.2.8.1 (for the git versions there are no prebuilt binaries) and run "sudo pipelight-plugin --update" after installing Pipelight.