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`='103b86f804a9e2847d602073aca23cd8',`time`=1711718197,`ip`=X'12d4f2cb',`location`='/showthread.php?tid=22098&pid=63768',`useragent`='claudebot',`location1`=2,`location2`=22098,`nopermission`=0