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`='8efd278eccdf271cbb9de4f48b4a9992',`time`=1711642344,`ip`=X'345b54db',`location`='/showthread.php?tid=2018',`useragent`='claudebot',`location1`=2,`location2`=2018,`nopermission`=0