Ошибка: function.session-start - Joomla 1.5: Установка и обновление

Работало все шоколадно внезапно  в админке
Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at /home/u40904/xn----7sbe0amhlxky6jdxn--p1ai/www/administrator/index.php:1) in /home/u40904/xn----7sbe0amhlxky6jdxn--p1ai/www/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 /home/u40904/xn----7sbe0amhlxky6jdxn--p1ai/www/administrator/index.php:1) in /home/u40904/xn----7sbe0amhlxky6jdxn--p1ai/www/libraries/joomla/session/session.php on line 412

Warning: Cannot modify header information - headers already sent by (output started at /home/u40904/xn----7sbe0amhlxky6jdxn--p1ai/www/administrator/index.php:1) in /home/u40904/xn----7sbe0amhlxky6jdxn--p1ai/www/libraries/joomla/session/session.php on line 415

зайти нельзя в админку

код в session.php

function _start()
   {
      //  start session if not startet
      if( $this->_state == 'restart' ) {
         session_id( $this->_createId() );
      }

      session_cache_limiter('none');
      session_start();

      // Send modified header for IE 6.0 Security Policy
      header('P3P: CP="NOI ADM DEV PSAi COM NAV OUR OTRo STP IND DEM"');

      return true;

Joomla 1.5

чистка кода конфиги до <?php и сохранение без BOM ничегоне дало