Smart form is not working in Production for VF31

Hi Guru's.

I Developed a new zsmartform and attached to VF31 for custum output type ZIBO . it is working fine in development but is not working in Production .

I checked with the configaration part it is ok and I generated function module in production also . But still it is not working in PRD ..

Will any body please give the solution.

Thanks,

Santhosh.V