Te damos toda la información del TITULO DE AUXILIAR DE ENFERMERIA en LEÓN para que sólo te dediques a estudiar

Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'tituloau_uno.learning_centers.id' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by