MyBB SQL Error

MyBB has experienced an internal SQL error and cannot continue.

SQL Error:
126 - Index for table './bclintbe_mbb3/mbb_sessions.MYI' is corrupt; try to repair it
Query:
REPLACE INTO mbb_sessions SET `uid`=0,`sid`='50510c60d163498314bd0e02de8cd964',`time`=1710845815,`ip`=X'12d0cb24',`location`='/mybb/ratethread.php?tid=577&rating=5&my_post_key=d9c6eb91e925835e45aa648c82227e67',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0