I am a huge Fifa 13 fan on and enjoy playing the online seasons mode whenever I have time to spare from work.
 
Recently I have run into a problem where Fifa crashes to the desktop whenever I start a season match or come to the seasons welcome screen. After doing research on the topic, I found a fix that worked out the problem for me.
 
When you sign into Fifa 13, you just have to create a new set of settings, opposed to logging in with your normal old settings. This fixed the issue for me and hopefully EA will sort the problem out sooner rather than later!
 
Happy Gaming!