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`='8d2498df80363f989497e0e60d41a831',`time`=1711715119,`ip`=X'2cdf46a7',`location`='/member.php?action=profile&uid=1566',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0