If the power has been out, it is possible that the computer inside has restarted. You will then need to log in again. The password is the model of the selfie mirror + the serial number. On the support stickers on your photobooth, you can see which model and number you have in the top right corner. If it says 'RETRO 1', your password is 'retro1'. The passwords are always lowercase letters and contain no spaces!
You enter the password using the keyboard, which is located inside the selfie mirror (open the door at the back) or in a gray crate we have left behind. Please note that the keyboards have a switch to turn them on.
After logging in, the photobooth app will usually start automatically.
If this is not the case, open the 'Touchpix' app from the dock/menu.
If the app does not start in full screen, you can make it full screen by clicking the green icon in the top left corner.