Roon QNAP Server won't install

Hi,
I just went for the Black Friday deal and started installing the Roon server app onto my QNAP NAS with the current firmware. Downloading went well but when installing itself, it stops at 50% and won’t proceed. After a while the process cancels itself and I can restart it with the same effect.

Any ideas what to do?
Thanks!

Finally worked! Needed three attemps though.

hi there, i am facing the same problem right now, how can you fix that??? million thanks