I have taken the drawers out and pushed the panel at the back there is no ice but it was loose so I pushed it right in and the trays fit better now.
the E-NR is EN 8561
the problem is still there but not as bad as before the front of the freezer drawers are still slightly frozen although the door does close properly.
Will try to take the panel on the rear inside off in the morn. thanks for your help so far.
sorry I have not replied sooner as I have been unwell with the flu. Its very difficult for me to get to the back panel as I have to lie flat on the floor to get to it I am a pensioner and will need to get some help from a neighbor. ill let you know.