0 step has been done with this data. Is that too much to handle?

Dear all users,
I am now running a DPD simulation with the following
data. However, 0 step has been done. I totally do not
know what to deal with it now. I have tries some ways
to avoid that happened. I have enlarged the bin to 5.0
which in my opinion is sufficiently a large bin and I also
have decreased the timestep to 0.001 which is a very
small timestep in DPD. Is that too much to handle?
Anyone help me? Thanks inadvance!
The data file:
LAMMPS Common Line
81002 atoms
131051 bonds
205403 angles
0 dihedrals
0 impropers
3 atom types
2 bond types
3 angle types
0 dihedral types
0 improper types
0 30 xlo xhi
0 30 ylo yhi
0 30 zlo zhi
Masses
1 1
2 1
3 1
Atoms
1 1 1 7.56649 9.69771 24.6131
2 1 1 6.2097 10.2396 23.9627
3 1 1 7.52373 9.49561 24.3956
4 1 1 6.25246 10.4417 24.1803
5 1 1 6.59804 9.452 24.8249
6 1 1 7.17816 10.4853 23.751
7 1 1 7.42911 10.3432 23.8336
8 1 1 6.34708 9.59408 24.7422

Thank you
edw

However, 0 step has been done.

What does this mean and why is it a problem?

Steve