2010085 - Dump error: LOAD_PROGRAM_NOT_FOUND - program "SAPLSUNM " does not exist in the library

• Using Kernel rel 720 and 720_EXT patch 600 and in the middle of the installation, encountered below dump error:
• Runtime Errors         LOAD_PROGRAM_NOT_FOUND
  Date and Time          25.04.2014 22:29:33

What happened?
    There are several possibilities:

    Error in the ABAP Application Program

    The current ABAP program "SAPMSSY1" had to be terminated because it has
    come across a statement that unfortunately cannot be executed.
    or
    Error in the SAP kernel.

    The current ABAP "SAPMSSY1" program had to be terminated because the
    ABAP processor detected an internal system error.

Error analysis
    On account of a branch in the program
    (CALL FUNCTION/DIALOG, external PERFORM, SUBMIT)
    or a transaction call, another ABAP/4 program
    is to be loaded, namely "SAPLSUNM ".

    However, program "SAPLSUNM " does not exist in the library.

    Possible reasons:
    a) Wrong program name specified in an external PERFORM or
       SUBMIT or, when defining a new transaction, a new
       dialog module or a new function module.
    b) Transport error

addon SAPK upgrade KBA NOTE UPG , KBA , BC-UPG , Upgrade - general , Problem