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`='1dc3a0e2ea305996eed71cf5f92156db',`time`=1711617368,`ip`=X'369ef827',`location`='/showthread.php?tid=3110',`useragent`='claudebot',`location1`=2,`location2`=3110,`nopermission`=0