ZyXEL NAS520 - Installing Plex issue

Hi All.

I have a DS411+II from Synology ans Plex is running fine, but not with FW 6.1 (Yet :-). )
But my main issue is, I have a Zyxel Nas520 with newest FW and have DL FFP to a USB stick, I can load the stick.
But when I try to install PMS then I get some issues…

  1. If I try to install/Download the PlewMediaServer-0.9.12… I get this error (Link 2 in the menu)

  2. If I try to download the latest, I get this error (Link 1 in the menu)

Can someone help me, why I dont have access to the latest or can install the version thats in the FFP menu !

All versions of PMS prior to 1.0.0 have been removed.
We are only permitted to download versions for Plex Pass and Public.
Anything else which may be there are ‘forbidden’.