Moved players.dat and teams.dat to my new save folder and got all back and I'm now at july 1. Now I can see maybe what caused Runtime error. All other players/teams looks same as it was before. But that Georges Vezina I imported last (I changed firstname to Xavier, lastname to Vézina, removed nickname and put to free agent) . Now Vezina have all attributes 0 and have injured since November 24th, -4714
He also lost hes language skills, got new nickname, weight 41kg?, lost hes popularity, catches: not set, major role seems agitator