New plex versions on synology no longer work

Server Version#:1.13.6.5339 & 1.13.5.5332

I have a synology NAS DS416j. Been using plex for a long time. The last working version is 1.13.4.5271.

After a perform an upgrade to version 1.13.6.5339 or 1.13.5.5332 server is not able to start anymore and url
http://X.X.X.X:32400/web/index.html
times out

Whats different with the last two versions. How can I resolve it?