When I was in a guild the daily FPs for my town hall were displayed in the production overview. I left the guild and created my own guild; now, however, even with one FP from the Viking settlement emissary, FOE helper says ‘NaN’ instead of returning the correct number, 1. This prevents the total of daily production from being calculated and displayed.
Also, since the creation of the castle system, FOE Helper has never shown the number of FPs that can be collected nor has it shown the time to collection. This also prevents the total of daily production from being calculated and displayed.