Long time lurker just joined officially - hello. Tried to check in online for flight from aberdeen to heathrow tomorrow at 1930 then to barbados from gatwick on Saturday - all booked together. Getting message that I can't check in and have to do this at airport. Never had this problem before - thoughts? Unfortunately just an economy booking but travelling with friend and I phoned a few weeks ago to get the separate bookings linked so we could sit together.