Hey, try deleting the save game files.
C:\Users\YourUserName\AppData\Local\ShopSim\Saved\SaveGames
This worked, thanks a lot!
yea where do i find appdata cuz im in c: users Daan but i cant find it
go to the start menu, there is a area where you can type,
type %appdata% and press enter.
otherwise set your folder options to not hide files and folders.