got this error if its any help in finding the cause:

Could not insert new word matches

DEBUG MODE

SQL Error : 1016 Can't open file: 'phpbb_search_wordmatch.MYI'. (errno: 145)

INSERT INTO phpbb_search_wordmatch (post_id, word_id, title_match) SELECT 1676792, word_id, 0 FROM phpbb_search_wordlist WHERE word_text IN ('mondeo', 'st24', 'callipers', '2wd', 'dicks', 'har', 'dick', 'gotta', 'admit', 'alans', 'stop', 'nbsp', 'top', 'shame', 'wouldnt', 'start', 'cry')

Line : 242
File : /home/passionf/www/forum/includes/functions_search.php