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`='f5a7a55053c26d5005a3fcbe5b769ebe',`time`=1711704098,`ip`=X'035b114e',`location`='/forumdisplay.php?fid=2&page=559',`useragent`='claudebot',`location1`=2,`location2`=0,`nopermission`=0