Was having the same issue, what worked for me is going to the Sports Interactive documents folder where all the saves etc are located and cutting the contents of that folder to a file on my desktop. I then launched the game and it seemed to work and I could save. Around half of my saves had a file size of 2MB and no longer worked after copying them back into the folder, but half of them still work and the game at least runs now. I wonder if the saves that don't work are the saves I tried to save onto when the game was having the issue? Either way, this worked for me.
Save Game Failed - This game could not be saved
in FM Console and FM Touch General Discussion
Posted
Was having the same issue, what worked for me is going to the Sports Interactive documents folder where all the saves etc are located and cutting the contents of that folder to a file on my desktop. I then launched the game and it seemed to work and I could save. Around half of my saves had a file size of 2MB and no longer worked after copying them back into the folder, but half of them still work and the game at least runs now. I wonder if the saves that don't work are the saves I tried to save onto when the game was having the issue? Either way, this worked for me.