Only some specific Animes are not downloadable

[BackTac]

Last week i wanted to download log horizon with german SUB.
But every time i try it i get 3 errors and after that it gets canceled
But only with this specific anime so far but its the same on my ubuntu server, my windows pc and with version 4.1.0 and 4.1.1

Is there anything i can do here? 🙂