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`='c5df6b771bb771e144aea50193504f58',`time`=1711633730,`ip`=X'2cc08442',`location`='/showthread.php?tid=23926&pid=69012',`useragent`='claudebot',`location1`=2,`location2`=23926,`nopermission`=0