configuring A new myWebMethods Portal Server

Hi All,

I need a help regarding one issue with myWebMethods Portal Server configuration
I need to change myWebMethods Portal Server from one machine to other. And i want to use the same tablespace & database schema for other portal server.
while configuring with the same database schema i am getting following error
[SIZE=1]Error initializing component: portalboot
com.webmethods.portal.PortalException: [POP.005.0021] Attempting to use non empty portal database for fresh deployment. Please make sure to create new empty portal database
at com.webmethods.portal.system.boot.Port

if any one having idia regarding this issue please let me know