An exception occurred: [ErrorException] [E_WARNING] Cannot modify header information - headers already sent by (output started at /home/trilhos/public_html/percursos/config.php:1) in /home/trilhos/public_html/percursos/add_evento.php on line 3

1. XF::handlePhpError()
2. header() in /home/trilhos/public_html/percursos/add_evento.php at line 3