WINDEV SQL connection issues

Hi,
We have one application developed in WINDEV, We have deployed this application on client's machine with dedicated server.
Now client is getting error for one procedure:
Le champ 'Table_sousComposantsPossibles' n'a pas pu s'initialiser, car il a rencontré l'erreur Hyper File suivante :
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Erreur dans le code SQL de la requête <Requête_union_sousComposantsPossible_liste>. Initialisation de la requête impossible.
Mot G inattendu

But when I check from my end, I'm not getting this error. I'm getting appropriate data.
But client has connected to other server and I'm connected to other server.
So what may be the cause and how should I deal with this?