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`='66adcc3ec9219797f1fe402c30693746',`time`=1711719398,`ip`=X'2cdea136',`location`='/showthread.php?tid=244&pid=1452',`useragent`='claudebot',`location1`=8,`location2`=244,`nopermission`=0