MyBB SQL Error

MyBB has experienced an internal SQL error and cannot continue.

SQL Error:
126 - Index for table './default_mivn1/irmn_sessions.MYI' is corrupt; try to repair it
Query:
REPLACE INTO irmn_sessions SET `uid`=0,`sid`='bffdaeea355318850e60bf37a900179c',`time`=1711716943,`ip`=X'22e5ef52',`location`='/forumdisplay.php?fid=1',`useragent`='claudebot',`location1`=1,`location2`=0,`nopermission`=0