EHP5 upgradation:Got Error at PHASE PREP_MODSUPPORT/REPACHK

Hi Gurus,

I am upgrading from ECC 6.0 to EHP5 in the checks phase i got below error please advise on this..

Error Details:

ERROR: RFC of "subst_get_open_sapobj_tas_reps" failed.

key : RFC_ERROR_SYSTEM_FAILURE

message : The system is configured incorrectly.

SAPehpichk.log:

CURRENTPHASE PREP_MODSUPPORT/REPACHK

...started at 20111004202315

1. Using phase log file 'REPACHK.LOG'.

...begin dialogue at 20111004203333

...end dialogue at 20111005121518

..finished at 20111005121521 with status RFC-CALL of GET_OPEN_SAPOBJ_REPTA FAILED.

1. Error message set: 'RFC call to subst_get_open_sapobj_tas_reps failed with key RFC_ERROR_SYSTEM_FAILURE (SYSTEM_FAILURE): Time limit exceeded.'

REPACHK.log:

1 ETQ201 Entering upgrade-phase "REPACHK" ("20111005122249")

4 ETQ399 Set environment for standard connect:

2 ETQ367 Connect variables are set for standard instance access

4 ETQ399 System-nr = '01', GwService = 'sapgw01'

4 ETQ399 Environment variables:

4 ETQ399 dbs_ora_schema=SAPSR3

4 ETQ399 auth_shadow_upgrade=0

1 ETQ200 Executing actual phase 'PREP_MODSUPPORT/REPACHK'.

1 ETQ399 Phase arguments:

2 ETQ399 Arg[0] = 'IGNORE'

4 ETQ359 RFC Login to: System="IJE", Nr="01", GwHost="admin0001", GwService="sapgw01"

4 ETQ359 RFC Login to: System="IJE", Nr="01", GwHost="admin0001", GwService="sapgw01"

4 ETQ232 RFC Login succeeded

4 ETQ233 Calling function module "SUBST_GET_OPEN_SAPOBJ_TAS_REPS" by RFC

Thanks,

Venkat