Failed to load URL

I present in the application server the next Message: search "Failed to load URL"

Environment:

=============

PROD

IBM AIX on POWER Systems (64-bit)

PeopleTools 8.51.16

Application Version: FSCM 9.1

Bundle Version: 17

Oracle Database: Release 11.2.0.3.0

Webserver: Oracle WebLogic Server 11gR1 (10.3.6)

Oracle Tuxedo 10.3.0.0, Patch Rp057

IBM COBOL 3.1 for AIX 6.1

<url> = Load Balanced (IBM WebSphere)

(45805): PSAPPSRV.16121928 (3128) [09/18/12 08:21:56 02004031@192.168.40.62 PortalRegistry](4) Failed to load URL:http://<url>/psc/FIN91PRD/EMPLOYEE/ERP/c/PV_MAIN_MENU.PV_REQ_ENTRY.GBL?Action=A in the Portal registry. In fn CPortalRegistry::FindLogicalURL in file /vob/peopletools/src/psoftapi/portalregistry.cpp

(47813): PSAPPSRV.19398780 (829) [09/18/12 08:22:07 00005345@192.168.52.247 PortalRegistry](4) Failed to load URL:http://<url>/psc/FIN91PRD/EMPLOYEE/ERP/c/MANAGE_WORK_ORDER.WM_ADD_WR_SS.GBL?Action=U&BUSINESS_UNIT=PT001&WR_ID=0000005413&SEQ_NBR=4&Action=U&BUSINESS_UNIT=PT001&WR_ID=0000005413&SEQ_NBR=4 in the Portal registry. In fn CPortalRegistry::FindLogicalURL in file /vob/peopletools/src/psoftapi/portalregistry.cpp