Thema: Problem mit: function.session-start]

Hallo. Ich habe einen komischen fehlercode auf meiner Homepage:

Code:

Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at /www/htdocs/XXX/XXX/XX/configuration.php:1) in /www/htdocs/XXX/XXX/hp/libraries/joomla/session/session.php on line 412

Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /www/htdocs/XXX/XXX/XX/configuration.php:1) in /www/htdocs/XXX/XXX/XX/libraries/joomla/session/session.php on line 412

Warning: Cannot modify header information - headers already sent by (output started at /www/htdocs/xxx/exxx/xxx/configuration.php:1) in /www/htdocs/xxx/xxx/xxx/libraries/joomla/session/session.php on line 415

Bin echt am Verzweifeln weis mir echt nicht mehr zuhelfen :-(