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`='c66c3ddf14b6a4eec4975c6ac72ae553',`time`=1711678109,`ip`=X'2cd37565',`location`='/member.php?action=profile&uid=24388',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0