Every post I make I get the message:

Could not insert new word matches

DEBUG MODE

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

It still posts my reply (i figured this out after a quadruple post), but I can't go in and edit my posts either. Judging by a lot of other triple posts, I assume others are having this problem as well?