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`='c44b67234fbf39cdd3cf1620c0ad5201',`time`=1711690294,`ip`=X'3658b30c',`location`='/forumdisplay.php?fid=2&page=369',`useragent`='claudebot',`location1`=2,`location2`=0,`nopermission`=0