merhaba

6 aydır sorunsuz calışan phpbb2 kurulu sitemde mesajların goruntulendiği viewtopic.php sayfasında

Kod:
Warning: Unexpected character in input: '' (ASCII=7) state=1 in /home/xxx/public_html/forum/viewtopic.php on line 1147 Warning: Cannot modify header information - headers already sent by (output started at /home/forumtek/public_html/forum/viewtopic.php:1147) in /home/forumtek/public_html/forum/viewtopic.php on line 564 Warning: Cannot modify header information - headers already sent by (output started at /home/forumtek/public_html/forum/viewtopic.php:1147) in /home/forumtek/public_html/forum/includes/page_header.php on line 485 Warning: Cannot modify header information - headers already sent by (output started at /home/forumtek/public_html/forum/viewtopic.php:1147) in /home/forumtek/public_html/forum/includes/page_header.php on line 487 Warning: Cannot modify header information - headers already sent by (output started at /home/forumtek/public_html/forum/viewtopic.php:1147) in /home/forumtek/public_html/forum/includes/page_header.php on line 488

şeklinde uzun bir hata belirmeye başladı. PHP bilgim olmadığı icin kodlara mudahele edemiyorum. bir bilen varmı nasıl cozulur bu problem?..