Dictionary download problem

[LauraBe]

 Hello

I've got a sony xperia M4 aqua for about a year. I had a problem with the screen so I send It back to Sony and the problem was fixed but now, it's impossible to download a dictionary. I've got not other problem, my wi-fi is working but when the download starts, It never ends. I've tried a lot (reboot,..) but that doesn't change anything.

Does anyone had that? 

(sorry for the faults i'm from Belgium and writing in English isn't that easy)

Thank you