Thank you friend. Your PlexMediaServer works on my Amlogic S912 Ugoos-AM3 TvBox.
There was a problem with the work of the traktv plugin for PMS. It did not work with the Critical Error: “Unable to import the playhouse.apsw_ext library (Wrong elf class: elfclass64)”. This error was in your plugin and in the docker plugin from linuxserver.io.
I found a solution: need to create a file \Plug-in Support\ Data\com.plexapp.plugins.trakttv\ advanced.ini with the following contents:
cpu_architecture = armv7_hf
but after that, the docker plugin still did not work with the error “Unable to found module apsw”, and yours worked perfectly. Thanks again.