Average statistics disappeared

[Lawyeris_]

My problem is concerned with NBA live 07 game, but I am sure this could happen playing NBA live 08 too, so I ask you here, 'cause no-ne answers me in NBA live 07 tech issues section, maybe no-one reads it (lets suppose this happened playing NBA live 08):
Yesterday I suddenly noticed, there are no average statistics in "Team statistics" section of my playing season (in my finished seasons too), they just disappeared, only total numbers of the teams results (total points, total rebounds...) left, no average numbers per game. Could someone explain what happened - how average numbers could disappear and how to restore these average statistics? Maybe I deleted specific file without intention or replaced with wrong one, I dont know. It would very nice if someone could explaine me. Thanx in advance.