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`='5c4117fc4890189c9ee86dead9f84e74',`time`=1711678368,`ip`=X'03edb27e',`location`='/showthread.php?tid=4006',`useragent`='claudebot',`location1`=2,`location2`=4006,`nopermission`=0