DTP load error

Hi All,

When loading the data fromm PSA TO DSO,DTP showing the error :

1:Request has status :processed with errors.do you want to display the request monitor.[yes]

2:Cannot start background process DTPR_12801_1

When click on the message box,these screen will appear,cursor is at the CALL METHOD

3: CASE l_subrc.

WHEN 0.

WHEN OTHERS.

IF NOT p_r_log_step IS INITIAL AND l_subrc = 2.

p_r_log_step->add_sy_msg( ).

ENDIF.

DATA l_key TYPE string.

l_key = n_batch_id.

CALL METHOD cl_rsbm_log_step=>raise_step_failed_callstack

EXPORTING

i_textid = cx_rs_step_failed=>start_batch

i_key = l_key.

ENDCASE.

Regards,

Kalim.