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`='fa1647db62b29607d65a078c8ee52d74',`time`=1711699420,`ip`=X'22ed4ba5',`location`='/showthread.php?tid=3289&action=nextnewest',`useragent`='claudebot',`location1`=2,`location2`=3289,`nopermission`=0