DMol3, output error Signal Caught:15

This is the error i receive when i run a DMol3 geometry optimization:

Signal Caught:           15
HP-MPI licensed for Accelrys.
Host 0 -- ip 172.16.0.2 -- ranks 0 - 1
host | 0
======|======
    0 : SHM
Prot -  All Intra-node communication is: SHM
Checked out license feature: MS_dmol_site [for LSD] (2 copies)
Checked out license feature: MS_dsolid_site [for LSD] (2 copies)
MPI Application rank 1 exited before MPI_Finalize() with status 200
DMol3.pl message: DMol3 job finished in 99 hr 42 min 58 sec.

What is going on?

Thanks

Yinka