Data Base & Game will not save

I have downloaded the in game data base.

Spent 2 days tweaking only to find out that:

At first it saved and played however would'nt load the Brazilian Football leagues.

Then after returning to the data base to amend the file l found out l could not save it.

At first the game played and apart from no club badges being shown all was well...

I then after returning to the data base l amended however wouldn't save l returned to this data base to start a new game.

However this new game wouldn't save.

I had this problem when playing the FM19 Demo game.

Any help?

Thanks