Oracle Forms

Hi All,

I have used the below code for populating a tree item, but when i run the below code it throws the

error FRM-93652 The runtime proess has terminated abnormally.

DECLARE
  rgTree  RECORDGROUP;
  vcQuery VARCHAR2(2000);
  nStatus NUMBER;
  itTree  ITEM := FIND_ITEM ('BLOCK_TREE.TREE_EMPLOYEE');
BEGIN
  rgTree := FIND_GROUP ('RG_TREE');
  
  IF Id_Null(rgTree) THEN 
     rgTree := Create_Group('RG_TREE');
  END IF;
  -- Clear Tree
  Ftree.DELETE_TREE_NODE (itTree, Ftree.ROOT_NODE);
  -- Build up a new Query, if desired
  vcQuery := 'SELECT -1 as NODE_STATE,LEVEL as NODE_DEPTH,ENAME as NODE_LABEL,
                           DECODE(LEVEL,1,''insrec'',''nxtblk'') as NODE_ICON,
                           To_Char(EMPNO) as NODE_VALUE 
                FROM EMP CONNECT BY PRIOR EMPNO=MGR 
               START WITH MGR IS NULL 
               ORDER SIBLINGS BY ENAME';

  -- Repopulate Record-Group
  nStatus := POPULATE_GROUP_WITH_QUERY (rgTree, vcQuery);
  -- Repopulate Tree
  Ftree.POPULATE_TREE(itTree);
END;

What and where is the problem with this code.

How to solve this issue ?