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`='02cf06ecbf3c8e060ffb2861bf8d87b5',`time`=1711653162,`ip`=X'03ebe324',`location`='/showthread.php?tid=3505',`useragent`='claudebot',`location1`=2,`location2`=3505,`nopermission`=0