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`='2922b3cacce5a90d5e16731ad213fb6d',`time`=1711652959,`ip`=X'36e27e26',`location`='/showthread.php?tid=16153&pid=101973',`useragent`='claudebot',`location1`=2,`location2`=16153,`nopermission`=0