again an empty log, with no gaming or system errors to go on, pointing to nothing i'm sorry to say.
as it sounds like, and i say sound likes a permissions issue, try and check the firewall and anti virus setup to see if either have anything in the logs?
if both empty, then try running the same game and save again, but this time load the game exe with a right click and run as admin, as see if that helps, if it does, alter the shortcut to always run the game as admin.
looking at past errors, the only one o can see point to wrong screen size and missing arrows not being shown on screen so users thinking it had hung etc?
if none of these work, then i'll have to pass you onto staff support who have more to go on than i do, as i just have the list of past errors to look atm, where they will have the past support calls and posts also