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`='8bc00cea416ee9ac9d79865864f2ab4e',`time`=1711658480,`ip`=X'ae813bc6',`location`='/member.php?action=profile&uid=20969',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0