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`='6f6d15dd67d5f78e8db02cc32bbae6bf',`time`=1711626138,`ip`=X'36f30229',`location`='/showthread.php?tid=24294&pid=69884',`useragent`='claudebot',`location1`=2,`location2`=24294,`nopermission`=0