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`='5abcdfef3357f6df31a50bec10c9f085',`time`=1711643689,`ip`=X'03ecdb9d',`location`='/showthread.php?tid=3579',`useragent`='claudebot',`location1`=2,`location2`=3579,`nopermission`=0