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`='4f8c2abc2e9acc7c136c37abf4bd3ced',`time`=1711617961,`ip`=X'12ea379a',`location`='/member.php?action=profile&uid=383]knytlw',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0