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`='13736d2c44ba547728e21879123f7d78',`time`=1711695836,`ip`=X'b8493862',`location`='/showthread.php?tid=3272',`useragent`='claudebot',`location1`=2,`location2`=3272,`nopermission`=0