I am really sorry, I just found out that the problem was related to some files I had deleted yesterday. I was cleaning all my Office related files from the pc as I was having issues with the licence, and I deleted libreoffice by mistake which is the one I use with axcrypt.
I just reinstalled it from scratch and now it is ok.
I can t delete the post by myself.
Thank you for your attention and congratulations for your application!