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`='17f68b67ab72393b2e4b6ccab7871eb0',`time`=1711650930,`ip`=X'345ad38d',`location`='/member.php?action=profile&uid=938',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0