Hello Simon,
Yes, you need to check the Friday Close, but you need to change the hour.
What time does your broker close on Friday? If they close exactly at 24:00 you need to change it to 00:00 – 23:45.
Because the EA will execute the close after the new bar is opened, and if the market is closed, it will not be able to close the trade.
So just do it 15 min before the close.