Error in read_data

I got the error during the running of the input script of LAMMPS:

ERROR: Cannot read_data without add keyword after simulation box is defined (src/read_data.cpp:316)
Last command: read_data

The input file is attached. Please review it,.
The initial configuration of atoms is also attached in file.
input.lammps (1.2 KB) (78.8 KB)

This input does not produce the error you are reporting, but rather the following:

ERROR on proc 0: Cannot open input script in.PMMCS: No such file or directory (src/input.cpp:1046)
Last command: in.PMMCS
Abort(1) on node 0 (rank 0 in comm 0): application called MPI_Abort(MPI_COMM_WORLD, 1) - process 0