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`='9df9c2e1ff2d4c1d6aee1e1f8fc73ac6',`time`=1711703989,`ip`=X'03ebb4f5',`location`='/showthread.php?tid=23551&pid=67879',`useragent`='claudebot',`location1`=2,`location2`=23551,`nopermission`=0