Questions regarding BPS web interface builder

When I try to display preview,this message occur :

500 Connection timed out

Connection timed out (-5)

-

Error: -5

Version: 6040

Component: ICM

Date/Time: Thu Apr 17 12:11:11 2008

Module: icxxthr_mt.c

Line: 2603

Server: S53KJ165_BWP_00

Detail: Connection to partner timed out after 60s

Anyone please help.