TS-NASX64_64. But I would go for using container station as there is no issues with ffmpeg as it will be bundled with it. My installed app version from QNAP club works with even QNAP club ffmpeg disabled I just can’t do video transcoding. So I can’t help beyond that. My recommendation is to use container station
Install container station
Create container
Type in BubbleUPnP in the search images box and select Docker Hub tab when it comes up.
Choose this version as it works there will be a lot listed fireplex/bubbleupnp . Click create.
Hit next at next window
In Create Container window click on advanced settings. Choose Network, set Network mode to host.
Click Create and wait
In the meantime disable your installed apps of bubble.
After this if you restart your Nas you will need to restart the contianer. Thats it very simple and no need to fiddle with ffmpeg.