If the green stop button is NOT illuminated, wave/tap your RFID fob against the WIFI icon on the station control panel (second icon from left). This will enable the green stop button.
The RFID tag is designed to lock the charging session while charging is in progress so you can’t be unplugged while you are away. This is indicated by a red padlock icon, which is lit when the station is locked.
If a remote start was used, the green STOP button will remain lit and available throughout the charging session.