I unfortunatly did not think to do a log file but in the event of the idol cosplaying and it resembling a german national uniform the game does not continue regardless of button options, and you have to force crash the game. i have noticed this on more than one occasion over 3 playthroughs. i hope this is useful despite the lack of log files.
Yeah, this one should actually be fixed in the update I did a few hours ago: https://sadambober.itch.io/idol-manager/devlog/95875/update-beta-91