Average statistics disappeared

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.

so, no-one could explain and help?