Verifica la estructura de la consulta:
SELECT A.*, B.tipo, B.link as link_tipo, C.marca, D.combustible, D.link as link_combustible, C.link as link_marca, E.link as link_capacidad, F.link as link_anio, G.link as link_altura, E.capacidad, F.anio, G.altura FROM montacargas A LEFT JOIN catalogo_tipo B ON B.id_tipo=A.id_tipo LEFT JOIN catalogo_marca C ON C.id_marca=A.id_marca LEFT JOIN catalogo_combustible D ON D.id_combustible=A.id_combustible LEFT JOIN catalogo_capacidad E ON E.id_capacidad=A.id_capacidad LEFT JOIN catalogo_anio F ON F.id_anio=A.id_anio LEFT JOIN catalogo_altura G ON G.id_altura=A.id_altura WHERE A.id_tipo IN(4,5) ORDER BY A.f_alta DESC LIMIT ,
You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 11