SELECT p.name,p.id,p.miejsce,pp.id AS id_data,pp.data_start,pp.data_stop,pp.godzina,pp.d1,pp.d2,pp.d3,pp.d4,pp.d5,pp.d6,pp.d7,pp.month,pp.day,pp.repeat FROM kasialewicka_events p LEFT JOIN kasialewicka_events_dates pp ON p.id=pp.id_parent WHERE 1 AND ( (pp.data_start>='2025-04-01' AND pp.data_start<='2025-04-31') OR (pp.data_stop!='0000-00-00' AND ( (pp.data_start<='2025-04-01' AND pp.data_stop>='2025-04-01') OR (pp.data_start>='2025-04-01' AND pp.data_stop<='2025-04-31') ))) ORDER BY data_start,data_stop,id, ## Incorrect DATE value: '2025-04-31' ##

place: /home/users/kasialewicka/public_html/kasialewicka.pl/app/sql.php