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`='5b9f750d9e095561d51847df70b5101d',`time`=1711634350,`ip`=X'2ccc41bd',`location`='/member.php?action=profile&uid=22620',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0