error en mi host

buenos dias amigos de forobeta en esta oportunidad me dirijo a ustedes con este problema para que me ayuden ya no se que hacer dentro d emi hots me tira un mensaje de error para que em ayuden,

esto e slo que aparece


[03-Mar-2014 10:28:20 America/New_York] PHP Warning: Cannot modify header information - headers already sent by (output started at /home/vynrwbzu/public_html/Includes/Configurar.php:19) in /home/vynrwbzu/public_html/Includes/Core_Funciones.php on line 5
[03-Mar-2014 10:28:53 America/New_York] PHP Warning: Cannot modify header information - headers already sent by (output started at /home/vynrwbzu/public_html/Includes/Configurar.php:19) in /home/vynrwbzu/public_html/Includes/Core_Funciones.php on line 5
[03-Mar-2014 10:29:11 America/New_York] PHP Warning: Cannot modify header information - headers already sent by (output started at /home/vynrwbzu/public_html/Includes/Configurar.php:19) in /home/vynrwbzu/public_html/Includes/Core_Funciones.php on line 5
[03-Mar-2014 10:29:22 America/New_York] PHP Warning: Cannot modify header information - headers already sent by (output started at /home/vynrwbzu/public_html/Includes/Configurar.php:19) in /home/vynrwbzu/public_html/Includes/Core_Funciones.php on line 5
[03-Mar-2014 10:29:55 America/New_York] PHP Warning: Cannot modify header information - headers already sent by (output started at /home/vynrwbzu/public_html/Includes/Configurar.php:19) in /home/vynrwbzu/public_html/Includes/Core_Funciones.php on line 5
[03-Mar-2014 10:29:57 America/New_York] PHP Warning: Cannot modify header information - headers already sent by (output started at /home/vynrwbzu/public_html/Includes/Configurar.php:19) in /home/vynrwbzu/public_html/Includes/Core_Funciones.php on line 5
[03-Mar-2014 10:30:53 America/New_York] PHP Warning: Cannot modify header information - headers already sent by (output started at /home/vynrwbzu/public_html/Includes/Configurar.php:19) in /home/vynrwbzu/public_html/Includes/Core_Funciones.php on line 5
[03-Mar-2014 10:31:01 America/New_York] PHP Warning: Cannot modify header information - headers already sent by (output started at /home/vynrwbzu/public_html/Includes/Configurar.php:19) in /home/vynrwbzu/public_html/Includes/Core_Funciones.php on line 5
[03-Mar-2014 10:31:55 America/New_York] PHP Warning: Cannot modify header information - headers already sent by (output started at /home/vynrwbzu/public_html/Includes/Configurar.php:19) in /home/vynrwbzu/public_html/Includes/Core_Funciones.php on line 5
[03-Mar-2014 10:31:55 America/New_York] PHP Warning: Cannot modify header information - headers already sent by (output started at /home/vynrwbzu/public_html/Includes/Configurar.php:19) in /home/vynrwbzu/public_html/Includes/Core_Funciones.php on line 5
[03-Mar-2014 10:32:07 America/New_York] PHP Warning: Cannot modify header information - headers already sent by (output started at /home/vynrwbzu/public_html/Includes/Configurar.php:19) in /home/vynrwbzu/public_html/Includes/Core_Funciones.php on line 5
[03-Mar-2014 10:32:09 America/New_York] PHP Warning: Cannot modify header information - headers already sent by (output started at /home/vynrwbzu/public_html/Includes/Configurar.php:19) in /home/vynrwbzu/public_html/Includes/Core_Funciones.php on line 5

No es error de tu host si no del script.

El mismo error te dice que archivos tienes que revisar y en que linea.

lo he revisado una y otra vez y no le consigo el error ene so archivos, ademas en las lineas que indican esta el espacio