Books not detected when archive is a symbolic link

[CesarHerreraG]

When I try view a file I get:

[TronFortyTwo]

Is that file of a supported format? If it's possible, could you send me the file so I can test it?

[CesarHerreraG]

Files that in the past were ok now give the problem. I can see it with EpubViewer.

[CesarHerreraG]

It were epub.

[CesarHerreraG]

http://paste.ubuntu.com/p/fCV25mSJDP/

[CesarHerreraG]

It was my fault. I tried a link to the SD card and perhaps I don't have permission.

[CesarHerreraG]

I'd like to know if it is possible to do it and how. Thanks.

[TronFortyTwo]

Could you just copy the file to the internal drive then import it? It's possible that is some sort of app security restriction

[CesarHerreraG]

I'm going to start from the begining. From UT Tweak Tool I go to SturmReader and clean the data. Then uninstall the app.
Reboot the telephone, install SturmReader from OpenStore and run it. It has been create the directory /home/phablet/.local/share/sturmreader.emanuelesorce/Libros
I paste there the file "gpiozero.epub". When I open SturmReader can see it. Open it and see it's content.

I close the app.
In Terminal go to "/home/phablet/.local/share/sturmreader.emanuelesorce" remove "./Libros" and execute "sudo ln -s /media/phablet/sd64/Libros ./Libros"
Reboot the telephon and run sturmreader. You see the old file but when you click on it you see an error message.

From a PC you can see all the files sftp://phablet@192.168.0.11/home/phablet/.local/share/sturmreader.emanuelesorce/Libros
But in the app you see nothing.
I add the epub

gpiozero.epub.tar.gz

[CesarHerreraG]

Insyalling from scratchbor cleaming with UT Tweek Tool, when I start the app I get this sceen

and I can't do nothing althow I press a button.