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`='b68c9c89ef53990dcf8d25921fa7b7aa',`time`=1711625956,`ip`=X'12ea379a',`location`='/showthread.php?tid=2251&pid=8014',`useragent`='claudebot',`location1`=2,`location2`=2251,`nopermission`=0