Express document "Update was terminated" on saving vendor payment F-48

Question

TCODE F-48.
When we are going to pay full payment to party it works fine
Problem:
When we do partiall payment for example 
100 kg material  Price  $100
first time: we purchase 50kg of $50 and create GRN
After this when we decide to pay the remaing payment of the material then system give the error .
Express document "Update was terminated" . This error appears when we select all the Taxes line simultaneously.
System not show this error when select one tax line and post the document but this is not acceptable because multiple invoice will create for lone documnet.
Looking forward to your replies.

Answer 1

Hi Atif,
Thanks for your quick reply. following are the error details
FUNCTION MODULE: POST_DOCUMENT
STATUS : UPDATE WAS TERMINATED
REPORT : LF005S01
ROW      : 293
ERROR DETAILS :CLASS F1                            NUMBER:109
F1 109: Line item 005
WHEN I CLICK ABAP EDITOR  IT TAKES ME LAST LINE OF THE FOLLWONG CODE
FORM BSEG_INSERT.
  INSERT BSEG.
  IF SY-SUBRC NE 0.
    MESSAGE A109 WITH BSEG-BUZEI BSEG-BUKRS BSEG-BELNR BSEG-GJAHR.
  ENDIF.
ENDFORM.       <----
CURSOR BLINKING ON THIS LINE