atom style

hello dear
i want to simulate water and nano fluid cu in a fcc lattice…water is base fluid and cu is a region (sphere or box)in the center of lattice (between water)

molecules are in the range of 1000 to 1500 and cu atoms are about 400 to 500…when it runs it shows this error"illegal lattice command"

type of atom style is full…i hvae read and i dont know to use template (because of some kinds of atoms) atomic or full…
does anybody know which kind should i use.?(is error related to kind of atom style?)thanks

1122 atoms
748 bonds
374 angles
0 dihedrals
0 impropers

2 atom types
1 bond types
1 angle types
0 dihedral types
0 improper types

atom_style full
bond_style harmonic
angle_style harmonic
kspace_style pppm 1.0e-4

group hydrogen type 1
group Water type 1 2
group cu type 3
group oxygen type 2


lattice fcc 3. 610
region Cu sphere 0 0 0 7 units box
create_atoms 3 region Cu

Next time you post a question, can you post the ENTIRE input script?