2002333 - SOLMAN_SETUP fails due to the error "Access via 'NULL' object reference not possible" after updating to 7.1 SP11

The following error occurs in IE while executing SOLMAN_SETUP after updating system to Solution Manager 7.1 SP11

500 SAP Internal Server Error

ERROR: Access via 'NULL' object reference not possible. (termination: RABAX_STATE)

In the meanwhile, the short dump below can be found in ST22

Category               ABAP Programming Error
Runtime Errors       OBJECTS_OBJREF_NOT_ASSIGNED
Except.                 CX_SY_REF_IS_INITIAL
ABAP Program        CL_SISE_SCOPE_ACCESS==========CP
Application Component  SV-SMG-INS-CFG
Date and Time          2014-04-07 13:09:05

Short text
      Access via 'NULL' object reference not possible.  

Information on where terminated  
      Termination occurred in the ABAP program "CL_SISE_SCOPE_ACCESS==========CP" -  in "ONE_SYSTEM_TO_OBJ". 
      The main program was "SAPMHTTP ".

      In the source code you have the termination point in line 40 of the (Include) program "CL_SISE_SCOPE_ACCESS==========CM00E".
      The termination is caused because exception "CX_SY_REF_IS_INITIAL" occurred in procedure "ONE_SYSTEM_TO_OBJ" "(METHOD)", but it was neither
      handled locally nor declared in the RAISING clause of its signature.
      The procedure is in program "CL_SISE_SCOPE_ACCESS==========CP "; its source code begins in line 1 of the (Include program "CL_SISE_SCOPE_ACCESS==========CM00E".

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|   36|                  CALL METHOD lr_diagls_factory->get_sol_man_tech_systs                     |
|   37|                    IMPORTING                                                               |
|   38|                      ex_abap_tech_syst = ls_abap_solman.                                   |
|   39|*                                                                                           |
|>>>>>|                  lt_abap_clients = ls_abap_solman-abap_technical_system->get_abap_clients( |
|   41|*                                                                                           |
|   42|                  READ TABLE lt_abap_clients INTO ls_abap_client WITH  KEY client  = is_syst|
|   43|                  IF sy-subrc = 0.                                                          |

SAP Solution Manager 7.1 SP11

OBJECTS_OBJREF_NOT_ASSIGNED; CX_SY_REF_IS_INITIAL;CL_SISE_SCOPE_ACCESS;LS_ABAP_SOLMAN-ABAP_TECHNICAL_SYSTEM; , KBA , SV-SMG-INS-CFG , Setup and Configuration of the Solution Manager system , Problem