MyBB SQL Error

MyBB has experienced an internal SQL error and cannot continue.

SQL Error:
126 - Index for table './bclintbe_mbb3/mbb_sessions.MYI' is corrupt; try to repair it
Query:
REPLACE INTO mbb_sessions SET `uid`=0,`sid`='50a9591f0d79fdc0e6bd87840607d4ab',`time`=1710841005,`ip`=X'6b1755b3',`location`='/mybb/showthread.php?tid=574&action=newpost',`useragent`='claudebot',`location1`=42,`location2`=574,`nopermission`=0