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`='e60d416c806f5289fd70ac40cb3cb24c',`time`=1711721815,`ip`=X'2cc11db8',`location`='/showthread.php?tid=5794&pid=93017',`useragent`='claudebot',`location1`=2,`location2`=5794,`nopermission`=0