Can't execute query

SELECT * FROM noticia WHERE idnoticia <> 83 and seccionnoticia='S' and idnoticiamodulo= and  publicar='S' and fechainicio <= NOW() and fechafin >= NOW()  order by orden

PostgreSQL Error: ERROR: error de sintaxis en o cerca de «and» LINE 1: ...<> 83 and seccionnoticia='S' and idnoticiamodulo= and publi... ^

This script cannot continue, terminating.