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`='cfcca78c31b33ba1e5a790d217a5bd76',`time`=1711724864,`ip`=X'36982b4f',`location`='/search.php?action=finduser&uid=1010',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0