Nova-T6 import to SIMS critical error - no NCYear group

[DuncanLeigh]

When attempting to export next academic year's timetable into SIMS from Nova-T, the submission fails. "One ore more critical errors has been detected. The submission cannot continue". The specific error is "Unknown NCYear in supplied curriculum 07" (and 08 and 09). Under NC Years 10, 11, 12 and 13 appear, but no Key Stage 3.

 

It seems that as far as Nova-T is concerned, Key Stage 3 doesn't exist in this version of the timetable. Is anyone able to advise on how to resolve this please?