Amend Booking - Seating

Hey,
I booked a flight with VA for me and my fiance to New York, as a suprise for her 21st birthday. At the time i selected out seats using the online seat map.
However, i went to look at the booking a few days ago and it said 'I am sorry, the seating map is not aviable at this time. Your seats will be assigned at check in'
Does this mean that the seat map is suffering technical problems, and will eventually come back online. Or have VA purposly turned this off, possible due to aircraft rotation or unable to fore-see aircraft type? And that the only way to choose seats will be at the airport on the day? I know that seating is a request only, and not a definate.
Thanks!, look forward to your replys!
I booked a flight with VA for me and my fiance to New York, as a suprise for her 21st birthday. At the time i selected out seats using the online seat map.
However, i went to look at the booking a few days ago and it said 'I am sorry, the seating map is not aviable at this time. Your seats will be assigned at check in'
Does this mean that the seat map is suffering technical problems, and will eventually come back online. Or have VA purposly turned this off, possible due to aircraft rotation or unable to fore-see aircraft type? And that the only way to choose seats will be at the airport on the day? I know that seating is a request only, and not a definate.
Thanks!, look forward to your replys!