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`='9c83e891e4703efd0e2f33f09dcb5217',`time`=1711636143,`ip`=X'03ee3e77',`location`='/showthread.php?tid=5328',`useragent`='claudebot',`location1`=2,`location2`=5328,`nopermission`=0