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`='e1904ce796d61b9ae8d937a94d5c7e0e',`time`=1711640153,`ip`=X'2cc983d5',`location`='/showthread.php?tid=3565&pid=13691',`useragent`='claudebot',`location1`=2,`location2`=3565,`nopermission`=0