Regarding subtitles Fan Factory! imply German subtitles which would be strange as the audio is English, Italian and Spanish. Maybe they mean Italian & german.
There's a Germany release too:
https://forum.blu-ray.com/showthread.php?t=377097 &
https://shop.plaionpictures.com/dari...ion-blu-ray-cd
It's streaming on Youtube and elsewhere for now:
& Shudder Amazon UK
https://www.amazon.co.uk/dp/B0CHP4Q8YJ etc