A mi en este me da este problema, te resondo en privado:
Could not insert new word matches
DEBUG MODE
SQL Error : 1196 Warning: Some non-transactional changed tables couldn't be rolled back
INSERT INTO phpbb_search_wordmatch (post_id, word_id, title_match) SELECT 390350, word_id, 0 FROM phpbb_search_wordlist WHERE word_text IN ('la', 'primera', 'vez', 'que', 'pasa', 'eso', 'tienes', 'problemas', 'prueba', 'entrando', 'desde', 'www', 'bazariberico', 'sitiop', 'ensuweb', 'com', 'foro', 'te', 'bien', 'guardala', 'favoritos')