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`='96d7b873472543df1a307cbcc39bc5c3',`time`=1711636678,`ip`=X'36f30229',`location`='/newreply.php?tid=70&replyto=214',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0