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`='80c7ae0091193aded71ecc3527d54cce',`time`=1711703955,`ip`=X'2cccd925',`location`='/reputation.php?uid=927',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0