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`='5916cd1cb470bb2d23cd667fbb5ceb35',`time`=1711671255,`ip`=X'12e8bc7a',`location`='/showthread.php?tid=8072&pid=99250',`useragent`='claudebot',`location1`=2,`location2`=8072,`nopermission`=0