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`='db8f489039998801b0b537f2b93d136b',`time`=1711652131,`ip`=X'2cded48a',`location`='/ratethread.php?tid=3565&rating=5&my_post_key=0defca876e1cfa781c8edc536a60eac5',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0