dmol3 solvation mode (cosmo) issue?

Hi

I am facing the problem of running dmol3 on a crystal structure with solvation mode and cosmo checked but getting the job failure notice. Error message which I am getting is as follows-

cosmo IBS grid

Message: DMol3 job failed

Error: DMol3 exiting

Error: no cosmo surface found

Error: no cosmo surface found

I am using MS-7.0. What can be the reason for this?

Regards

Janhvi