Warning: Undefined array key "login" in /home/c2070042/public_html/validar.php on line 5

Warning: Cannot modify header information - headers already sent by (output started at /home/c2070042/public_html/validar.php:5) in /home/c2070042/public_html/validar.php on line 7

Warning: require_once(db.class.php): Failed to open stream: No such file or directory in /home/c2070042/public_html/clases/producto.class.php on line 2

Fatal error: Uncaught Error: Failed opening required 'db.class.php' (include_path='.:/opt/php8-3/lib/php') in /home/c2070042/public_html/clases/producto.class.php:2
Stack trace:
#0 /home/c2070042/public_html/clases/carrito.class.php(3): require_once()
#1 /home/c2070042/public_html/inicio.php(5): require_once('/home/c2070042/...')
#2 {main}
  thrown in /home/c2070042/public_html/clases/producto.class.php on line 2