ارور در هنکام فعال کردن بهینه سازی

[sogoli]

سلام
من داخل پوشه مامبو4.6.5 فایلی با نام htaccess.txt ندیدم لذا مجبور شدم از فایل .htaccess مامبو 4.6.2 برای بهینه سازی لینکها استفاده کنم.که متاسفانه این ارور ها رو میده:


Warning: Cannot modify header information - headers already sent by (output started at C:\Program Files\xampp\htdocs\mambo_465_farsi\administrator\c omponents\com_sef\language\english.php:1) in C:\Program Files\xampp\htdocs\mambo_465_farsi\includes\core.c lasses.php on line 424

Warning: Cannot modify header information - headers already sent by (output started at C:\Program Files\xampp\htdocs\mambo_465_farsi\administrator\c omponents\com_sef\language\english.php:1) in C:\Program Files\xampp\htdocs\mambo_465_farsi\includes\core.c lasses.php on line 601

Warning: Cannot modify header information - headers already sent by (output started at C:\Program Files\xampp\htdocs\mambo_465_farsi\administrator\c omponents\com_sef\language\english.php:1) in C:\Program Files\xampp\htdocs\mambo_465_farsi\includes\core.c lasses.php on line 602

Warning: Cannot modify header information - headers already sent by (output started at C:\Program Files\xampp\htdocs\mambo_465_farsi\administrator\c omponents\com_sef\language\english.php:1) in C:\Program Files\xampp\htdocs\mambo_465_farsi\includes\core.c lasses.php on line 603

Warning: Cannot modify header information - headers already sent by (output started at C:\Program Files\xampp\htdocs\mambo_465_farsi\administrator\c omponents\com_sef\language\english.php:1) in C:\Program Files\xampp\htdocs\mambo_465_farsi\includes\core.c lasses.php on line 604

Warning: Cannot modify header information - headers already sent by (output started at C:\Program Files\xampp\htdocs\mambo_465_farsi\administrator\c omponents\com_sef\language\english.php:1) in C:\Program Files\xampp\htdocs\mambo_465_farsi\includes\core.c lasses.php on line 605