Joomla 1.5 Список ошибок над сайтом, что делать?

Сайт работал 4 месяца нормально. Сейчас над хэдером сайта вылез вот такой список ошибок:

Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at /home/u89686/remstroiuslugcom/www/index.php:1) in /home/u89686/remstroiuslugcom/www/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 /home/u89686/remstroiuslugcom/www/index.php:1) in /home/u89686/remstroiuslugcom/www/libraries/joomla/session/session.php on line 423

Warning: Cannot modify header information - headers already sent by (output started at /home/u89686/remstroiuslugcom/www/index.php:1) in /home/u89686/remstroiuslugcom/www/libraries/joomla/session/session.php on line 426

Warning: Cannot modify header information - headers already sent by (output started at /home/u89686/remstroiuslugcom/www/index.php:1) in /home/u89686/remstroiuslugcom/www/plugins/system/jfrouter.php on line 315

Warning: Cannot modify header information - headers already sent by (output started at /home/u89686/remstroiuslugcom/www/index.php:1) in /home/u89686/remstroiuslugcom/www/plugins/system/jfrouter.php on line 316

Warning: Cannot modify header information - headers already sent by (output started at /home/u89686/remstroiuslugcom/www/index.php:1) in /home/u89686/remstroiuslugcom/www/plugins/system/jfrouter.php on line 317

Подскажите, пожалуйста, что делать?

 

Забей текст ошибки в Google.

 

Спасибо, как ни странно, помогло!