I've two bookings with sectors on IB and would like to assign seats on at least one of them on Iberia.com

Doesn't work though as the direct link from BA's Manage My booking just gives an Error on Iberia.com ... and if I try to view the booking manually on Iberia.com ( either using the BA PNR or the IB one ( 5 characters ) that they give on that MMB page ) they both fail .. for both my bookings so I assume there's some other error going on

Any suggestions how to load the bookings on the Iberia site/app ?