I think yo are referring to Security Management Server and not SmartConsole, which is GUI client to connect to Security Management Server.
Depending on your software version in use, some limited details can be recovered from your GWs.
In any case, you will not be able to restore the full functionality without some painful and hard work. The best is to ask Check Point local representative to asses the amount of efforts required and to order appropriate Professional Services assistance.
In the future, please make sure your critical systems are properly backed up