I just downloaded em client and My contact list is empty. How to I restore it .

contact list is missing. how can I restore it ?

Which email provider are you using? It might be that you need to setup your contacts as a separate account such as CardDAV.

If might also be that your local folders are not visible and that is where the contacts are if you imported from another application. If you can’t see the Local Folders, you can enable them in Menu > Tools > Settings > General > Show Local Folders.