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`='45b930b00c95bc0ee602e542def23563',`time`=1711624458,`ip`=X'23afd405',`location`='/showthread.php?tid=15598&pid=100534',`useragent`='claudebot',`location1`=2,`location2`=15598,`nopermission`=0