Tvheadend not installing

[muppets4 24]

I've been installing TVheadend on my Synology, so I went on and wanted to install the plugin on Emby. The installation of the plugin fails. There is only a general error. I've included the relevant part of the log.

tvheadend.txt

[Luke 42077]

try again later. our package server returning a 403 error for some reason (forbidden). you've actually reported this before but different symptoms.