Die Schwalbe
The search command is not correct.
COMMENTDATE>=20220810 AND S='Atputa' AND S='L'Echiquier (Brüssel)'
atomic expression must have form 'field = value' [( COMMENTDATE >= $$NUMBER0 AND S = $$STRING1 AND S = $$STRING2 ECHIQUIER ( BRÜSSEL ) $$STRING5]