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`='e47afddb3fdf46d0ee5a22d60b437139',`time`=1711727143,`ip`=X'03eb7818',`location`='/showthread.php?tid=5555',`useragent`='claudebot',`location1`=2,`location2`=5555,`nopermission`=0