Dear Biovia Users,
I have a problem with the start of molecular dynamics calculations with using CASTEP and constrains (constant interatomic distances). Error message is the following:

ERROR in cell_read_nonlinear_constraint: cannot read constraint data
Current trace stack:
 cell_read_nonlinear_constraint
 cell_read
 castep
application called MPI_Abort(MPI_COMM_WORLD, 1) - process 0

The corresponding *.cell and *.param files are attached.
I would be thankful for advaces on how to resolve the problem.

Regards,
Bohdan Andriyevsky