Técnicas de Optimización Modernas para Problemas Complejos

Error message

Notice: Trying to access array offset on value of type null in include() (line 40 of /var/www/html/sites/all/themes/Artista/node.tpl.php).
Deprecated function: Array and string offset access syntax with curly braces is deprecated in require_once() (line 341 of /var/www/html/includes/module.inc).
Deprecated function: Array and string offset access syntax with curly braces is deprecated in require_once() (line 341 of /var/www/html/includes/module.inc).
Deprecated function: Array and string offset access syntax with curly braces is deprecated in require_once() (line 341 of /var/www/html/includes/module.inc).
Deprecated function: Array and string offset access syntax with curly braces is deprecated in require_once() (line 341 of /var/www/html/includes/module.inc).