El caso es que estoy rehaciendo la web desde 0 y al pinchar en el apartado Foro (apartado público) me sale esto:

Warning: Cannot modify header information - headers already sent by (output started at /home/webcindario/b/r/brutalrealm/themes/Hitech/theme.php:70) in /home/webcindario/b/r/brutalrealm/modules/Forums/includes/sessions.php on line 254 Warning: Cannot modify header information - headers already sent by (output started at /home/webcindario/b/r/brutalrealm/themes/Hitech/theme.php:70) in /home/webcindario/b/r/brutalrealm/modules/Forums/includes/sessions.php on line 255

Warning: Cannot modify header information - headers already sent by (output started at /home/webcindario/b/r/brutalrealm/themes/Hitech/theme.php:70) in /home/webcindario/b/r/brutalrealm/modules/Forums/includes/page_header.php on line 480 Warning: Cannot modify header information - headers already sent by (output started at /home/webcindario/b/r/brutalrealm/themes/Hitech/theme.php:70) in /home/webcindario/b/r/brutalrealm/modules/Forums/includes/page_header.php on line 482 Warning: Cannot modify header information - headers already sent by (output started at /home/webcindario/b/r/brutalrealm/themes/Hitech/theme.php:70) in /home/webcindario/b/r/brutalrealm/modules/Forums/includes/page_header.php on line 483

Ayuda por favor, que puedo hacer¿?

http://soporte.miarroba.es/80376/14[....]uentes-config-php-errores-en-foros/