Getting short dump on selecting request in clock-in/out correction

Hi All,

We are using clock-in/out correciton application using HRESS_C_CORRECTIONS.

We are able to edit entries which are not posted. We are auto approving entries and have workflow configured.

After posting time entries thourgh RPTCORPOST if we select request to edit with 'Edit' button top, we are getting following short dump:

Category               ABAP Programming Error
Runtime Errors         MESSAGE_TYPE_X
ABAP Program           CL_PT_COR_REQS_LIST===========CP
Application Component  PT-RC-TE
Date and Time          2013/05/16 03:30:57

Error analysis
     Short text of error message:
     Request ID 005056A718F21EE2AFBF34CAFDB15CDA does not exist

     Long text of error message:

     Technical information about the message:
     Message class....... "HRTIM_ABS_REQ"
     Number.............. 038
     Variable 1.......... "005056A718F21EE2AFBF34CAFDB15CDA"
     Variable 2.......... " "
     Variable 3.......... " "
     Variable 4.......... " "

Source Code Extract

Line  SourceCde

    1 METHOD get_reqlist_entry.
    2
    3   DATA:
    4       req_objs_tab  TYPE ptreq_request_tab,
    5       obj_request   TYPE REF TO if_pt_req_request,
    6       attribs_struc TYPE ptreq_request_struc_flat.
    7
    8
    9 * find request in selected_reqlist
   10   READ TABLE selected_reqlist
   11     WITH KEY request_id = im_request_id
   12         INTO ex_reqlist_entry.
   13
   14   IF sy-subrc NE 0.
   15
   16     CALL METHOD ca_pt_req_header=>sel_reqs_by_all_attribs
   17       EXPORTING
   18         im_request_id   = im_request_id
   19       IMPORTING
   20         ex_result_tab   = req_objs_tab

     EXCEPTIONS

        actor_not_found = 1

        OTHERS          = 2.



    READ TABLE req_objs_tab INDEX 1 INTO obj_request.



    IF sy-subrc NE 0.

   >>>>   MESSAGE x038(hrtim_abs_req) WITH im_request_id.

    ENDIF.

Kindly help me how to avoid this exception.

Thanks & Regards,

Phani.