I am trying to do a NMR J coupling calculation. I followed the requirements listed in the help, i.e. P1 symmetry, OTFG, ZORA.
But I get the following error for the J-coupling calculations:

wave_allocate_wv: error opening page file
Current trace stack:
 wave_allocate_wv
 magres_jcoupling_spin_total
 magres_jcoupling_spin
 magres_run
 castep

Any ideas on how to solve this?

Thanks, Andreas