Employee services tabs not loading

Hi all,

We are on NW portal 7.4.While opening ESS home page in portal Employee services tabs(maps,directory..) are not loading.we troubleshooted ESS WDA application (ZHRESS_AC_MENU) via SE80 here also we are getting same issue. please find screenshots regarding issue. Please let me know where should i check?

thanks and Regards,

Narendar Salla.