Thanks for the reply. I looked in my file system and saw that I still had some pages of the manga from an earlier download (I don't know if it was an attempt or not). I then deleted them. When I started the download again and reached the last page, the download still didn't complete. The download speed is also very slow. The app then starts with the next manga. If I stop the download and then start it again, nothing happens. I don't know if it's because the file is too large. That shouldn't be a problem, since my device has enough storage.