Help, im lvl 62 cannot finish the game!

[Kurta]

Playing the game since day one. Atm im on lvl 62 and i have to fight Eric one more time. No matter what i do, at the end of my turn Eric begins to cast something and the game crashes. I dont know what he is casting cuz i cant see it. Anyone knows how to avoid this? Cuz i dont want to start the game from beginning

P.S. Sorry for bad english!

Edit - I pass him, just need to use tactic and spread out your army, i think he use some king of aoe spell to crash the game!