Error : Status 'ALV_GRID' for the user interface Zxxxxx missing

I am working on an upgrade project from 4.6C to ECC 6.0.

The client has made a Z transaction, when i execute it i get an error in the status bar stating that ..Status 'ALV_GRID' for the user interface Zxxxxx missing.

Please suggest, it is very very urgent for me.

Thanks.