So i put my game in fullscreen mode to figure out that i cant hit any of the buttons... I tried uninstalling it and stuff i tried looking for the game save to maybe fix it but nope. Please help!
I haven't implemented the feature to revert back to the last screen mode. For the time being, C:\Users\YourUserName\AppData\Local\ShopSim\Saved\SaveGames and delete the settings file. This will revert back all of your settings.
Alternatively, hit "Ctrl+Enter". Generic fullscreen toggle button combo for most games. As for saving, it probably doesn't save it, but at least it goes windowed.