THis not about my game, but about my husbands game. He heas the following message when he tries to load his recent savegame:

Trying to load a bad form in TES III file:
Next form:
file= *inserthenameofthesavegamehere*.ess
-> offest= 335331

I think that this means this savegame is lost but how did it happen? This could help preventing this from happening again...

Thank you in advance!