Arkadaşlar sitemi joomla 1.5.9 ile kurdum şimdi host değiştirmek için gerekli işlemleri yaptım.Fakata siteme girince hata veriyor hata aşağıdaki şekildedir.
Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at /vhosts/.com/http/configuration.php:1) in /vhosts/.com/http/libraries/joomla/session/session.php on line 423

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /vhosts/.com/http/configuration.php:1) in /vhosts/.com/http/libraries/joomla/session/session.php on line 423

Warning: Cannot modify header information - headers already sent by (output started at /vhosts//http/configuration.php:1) in /vhosts/.com/http/libraries/joomla/session/session.php on line 426
Bu sorunu nasıl çözebilirim