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`='d47a3a05a0491f68748a64407ca31c1e',`time`=1711699982,`ip`=X'22e5975d',`location`='/printthread.php?tid=3571',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0