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`='49d5bab04643df8a9328088b73f096c3',`time`=1711698972,`ip`=X'23abb6ef',`location`='/showthread.php?tid=15283&pid=99615',`useragent`='claudebot',`location1`=2,`location2`=15283,`nopermission`=0