Load script error in QV 9

[#1]

Hi,
I got error with no description when loading data with QV9.

If I use this sytax, load script fails and I got error without any description:

load
intDKTaisyklesId
,intDKTaisyklesGrupe as [TaisykliuGrupe3.intDKTaisyklesGrupeId]
;
sql select
intDKTaisyklesId
,intDKTaisyklesGrupe
from tblDKTaisykles;

BUT!!! If I use another alias with field [intDKTaisyklesGrupe ], eveything is working without any problems:

load
intDKTaisyklesId
,charDKTaisyklesDK as DraudikoKodas //[Draudikas.charDKKodas]
,intDKTaisyklesGrupe as [TaisykliuGrupe3.intDKTaisyklesGrupeId]
,ysnAktyvi
;
sql select
intDKTaisyklesId
,charDKTaisyklesDK
,intDKTaisyklesGrupe
,ysnAktyvi
from tblDKTaisykles;

How to known more about error? Maybe someone already solved error like this, ie with aliases. How to track errors like this?

Ramunas