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`='e4d9cab0f4f15b8bc702362ff20b8054',`time`=1711656730,`ip`=X'36a734ee',`location`='/showthread.php?tid=4594',`useragent`='claudebot',`location1`=2,`location2`=4594,`nopermission`=0