Fatal error: Uncaught mysqli_sql_exception: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1 in /p/vhosts/mentarium.webs.upv.es/httpdocs/librerias/bd_i.php:170 Stack trace: #0 /p/vhosts/mentarium.webs.upv.es/httpdocs/librerias/bd_i.php(170): mysqli->query() #1 /p/vhosts/mentarium.webs.upv.es/httpdocs/librerias/modulos/categorias/_categorias.class.php(290): _bbdd->bbdd_select() #2 /p/vhosts/mentarium.webs.upv.es/httpdocs/librerias/modulos/categorias/path_Encabezado.php(8): TRB_CategoriesClass->armarcategorias() #3 /p/vhosts/mentarium.webs.upv.es/httpdocs/index.php(9): include_once('...') #4 {main} thrown in /p/vhosts/mentarium.webs.upv.es/httpdocs/librerias/bd_i.php on line 170