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`='34a11d2bb2479f34015e8f47b7791302',`time`=1711640752,`ip`=X'03ec13fb',`location`='/misc.php?action=whoposted&tid=6&sort=username',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0