It may not be your team that is the issue - the quickest fix for it is to see which game it is stopping at (you may even need to check the d-league games) and check the two teams who are involved in the stoppage. You can change to commissioner mode in the upper right corner, go to the team with the issue and correct it and then go back to your player.
PRIOR to doing that though it would be great if you could look under the HELP menu for instructions on submitting game files. If the AI is somehow in a situation where it is not properly fixing their roster I would love to get the files submitted via ticket at
www.wolverinestudios.com/support so I can see why the AI is missing something. After you send the files you can fix it on your end and move along but if I could see the files before you fix it then I can fix it in the upcoming first update for the future.