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`='3c50fe28b6eeb584611bff632648a1f4',`time`=1711627606,`ip`=X'2cd54b4e',`location`='/showthread.php?tid=28094&pid=97502',`useragent`='claudebot',`location1`=2,`location2`=28094,`nopermission`=0