Off balance,
either you have overloaded the machine or it has sensed an unbalance with the load,
the machine should let you in, too either, remove some items, or redistribute the load.
Give the drum a turn by hand before you resume the cycle.
I have never seen a 129 with a LCD display before,only LED,
I can tell you as a matter of interest that your model is basically a rebranded indesit.
hope this info helps.
paul, March 2012