MyBB SQL Error

MyBB has experienced an internal SQL error and cannot continue.

SQL Error:
145 - Table './balkania_forum/mybb_sessions' is marked as crashed and should be repaired
Query:
REPLACE INTO mybb_sessions SET `uid`=0,`sid`='978904a3573ef2f879e606acb63f43f2',`time`=1711718386,`ip`=X'2cde3f43',`location`='/misc.php?action=whoposted&tid=267&sort=username',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0