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`='ba132f86b4f64e9430e1b51b267cc055',`time`=1711669286,`ip`=X'36a30e90',`location`='showthread.php?tid=3313',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0